diff --git a/dabo/analyze.sh b/dabo/analyze.sh
index d3d9f50..eb4b419 100755
--- a/dabo/analyze.sh
+++ b/dabo/analyze.sh
@@ -22,8 +22,6 @@ function g_echo_note {
 
 function analyze {
 
-  set -x
- 
   local file=$1
   tmpfile=$(basename "${file}")
 
@@ -131,7 +129,8 @@ function analyze {
       if [ -s ${g_tmp}/interim-${tmpfile} ]
       then
         f_interim=$(tail -n1 ${g_tmp}/interim-${tmpfile})
-        f_interim=$(g_calc "${f_interim}-${FEE}")
+        g_calc "${f_interim}-${FEE}"
+        f_interim=${g_calc_result}
       fi
     fi
     echo "$f_line,${f_market_performance},${f_score},${f_buy_score},${f_sell_score},${f_intrade},${f_interim}" >>analyze-${analyzedate}/chart-${tmpfile}
@@ -144,8 +143,10 @@ function analyze {
   then
     f_SELL="SELL ${f_ASSET}: End of file/data" 
     echo "SELL: $(tail -n1 ${g_tmp}/${tmpfile} | cut -d, -f1) === ${f_SELL}" >>${g_tmp}/output-${tmpfile} 2>&1
-    result=$(g_percentage-diff ${BUY_PRICE} ${f_price})
-    result=$(g_calc "${result}-${FEE}")
+    g_percentage-diff ${BUY_PRICE} ${f_price}  
+    #result=$(g_percentage-diff ${BUY_PRICE} ${f_price})
+    g_calc "${g_percentage_diff_result}-${FEE}"
+    result=${g_calc_result}
     echo "$result" >>${g_tmp}/result-${tmpfile}
     echo "RESULT: ${result}% (${BUY_PRICE} -> ${f_price})" >>${g_tmp}/output-${tmpfile}
     #rm -f ${g_tmp}/open-${tmpfile}
@@ -156,10 +157,12 @@ function analyze {
   complete_result=0
   for result in $(cat ${g_tmp}/result-${tmpfile})
   do
-    complete_result=$(g_calc "$complete_result+$result" | xargs printf "%.2f")
+    g_calc "$complete_result+$result"
+    complete_result=$(echo ${g_calc_result} | xargs printf "%.2f")
   done
 
-  hodlresult=$(g_percentage-diff $(egrep "^${ANALYZE_TIME}" "$file" | grep -v ',,' | head -n1 | cut -d, -f2) $(egrep "^${ANALYZE_TIME}" "$file" | grep -v ',,' | tail -n1 | cut -d, -f2))
+  g_percentage-diff $(egrep "^${ANALYZE_TIME}" "$file" | grep -v ',,' | head -n1 | cut -d, -f2) $(egrep "^${ANALYZE_TIME}" "$file" | grep -v ',,' | tail -n1 | cut -d, -f2)
+  hodlresult=${g_percentage_diff_result}
 
   echo "COMPLETE:RESULT:$(basename "$file" | cut -d. -f1):: ${complete_result}% HODL:${hodlresult}% analyze-${analyzedate}/${tmpfile}.log $file" | perl -pe 's/ /\t/g; s/:/ /g' | tee -a ${g_tmp}/output-${tmpfile}
   echo "=====================================" >>${g_tmp}/output-${tmpfile}
diff --git a/dabo/functions/binance_convert.sh b/dabo/functions/binance_convert.sh
index 9f7ad90..cce5481 100644
--- a/dabo/functions/binance_convert.sh
+++ b/dabo/functions/binance_convert.sh
@@ -49,7 +49,8 @@ ${FUNCNAME} $@"
     cat ${g_tmp}/API_CMD_OUT >${f_CMDFILE}_QUOTE_OUT
     # get convert price
     local f_convert_price=$(cat ${f_CMDFILE}_QUOTE_OUT | grep '^{' | jq -r .inverseRatio | head -n1)
-    local f_price_diff=$(g_percentage-diff ${f_market_price} ${f_convert_price})
+    g_percentage-diff ${f_market_price} ${f_convert_price}
+    local f_price_diff=${g_percentage_diff_result}
   fi
 
   if [ "${f_ACTION}" = "sell" ]
@@ -59,7 +60,8 @@ ${FUNCNAME} $@"
     cat ${g_tmp}/API_CMD_OUT >${f_CMDFILE}_QUOTE_OUT
     # get convert price
     local f_convert_price=$(cat ${f_CMDFILE}_QUOTE_OUT | grep '^{' | jq -r .ratio | head -n1)
-    local f_price_diff=$(g_percentage-diff ${f_convert_price} ${f_market_price})
+    g_percentage-diff ${f_convert_price} ${f_market_price}
+    local f_price_diff=${g_percentage_diff_result}
   fi
 
   if [ $(echo "${f_price_diff} > ${FEE}" | bc -l) -eq 1 ]
diff --git a/dabo/functions/check_buy_conditions.sh b/dabo/functions/check_buy_conditions.sh
index 3a007b7..f0a9767 100644
--- a/dabo/functions/check_buy_conditions.sh
+++ b/dabo/functions/check_buy_conditions.sh
@@ -59,7 +59,8 @@ function check_buy_conditions {
     g_echo_note "${f_BUY}"
 
     # calculate quantity from balance for potentially invest
-    local f_INVEST_QUANTITY=$(g_calc "scale=2; ${CURRENCY_BALANCE}/100*${INVEST}" | cut -d\. -f1)
+    g_calc "scale=2; ${CURRENCY_BALANCE}/100*${INVEST}"
+    local f_INVEST_QUANTITY=$(echo "${g_calc_result}" | cut -d\. -f1)
     g_echo_note "BUY current investment quantity is ${f_INVEST_QUANTITY} ${CURRENCY}"
 
     # remove CURRENCY from asset
@@ -72,17 +73,25 @@ function check_buy_conditions {
 
       # use MIN_NOTIONAL+5% as INVEST_QUANTITY if INVEST_QUANTITY is under MIN_NOTIONAL
       # +5% in spite of MIN_NOTIONAL to be able to sell when the price falls a little bit
-      [ $(g_calc "${f_INVEST_QUANTITY} < ${f_MIN_NOTIONAL}") -eq 0 ] || f_INVEST_QUANTITY=$(g_calc "scale=2; $f_MIN_NOTIONAL/100*105")
+      #[ $(g_calc "${f_INVEST_QUANTITY} < ${f_MIN_NOTIONAL}") -eq 0 ] || f_INVEST_QUANTITY=$(g_calc "scale=2; $f_MIN_NOTIONAL/100*105")
+      if ! g_num_is_lower.sh ${f_INVEST_QUANTITY} ${f_MIN_NOTIONAL}
+      then
+        g_calc "scale=2; ${f_MIN_NOTIONAL}/100*105"
+        f_INVEST_QUANTITY=${g_calc_result}
+      fi
+
 
       # if there is not enough balance for buying because ${f_MIN_NOTIONAL} needed for buying to sell (workaround)
-      if [ $(g_calc "${CURRENCY_BALANCE} < ${f_MIN_NOTIONAL}*2") -ne 0 ]
+      g_calc "${CURRENCY_BALANCE} < ${f_MIN_NOTIONAL}*2"
+      if [ ${g_calc_result} -ne 0 ]
       then
         g_echo_note "BUY ${f_ASSET} not enough balance ${CURRENCY_BALANCE} for buying because of MIN_NOTIONAL (${f_MIN_NOTIONAL}*2) needed for buying-to-sell (workaround)"
         return 1
       fi
 
       # continue if not balance enough for lowest quantity (MIN_NOTIONAL)
-      if [ $(g_calc "${CURRENCY_BALANCE} > ${f_INVEST_QUANTITY}") -eq 0 ]
+      g_calc "${CURRENCY_BALANCE} > ${f_INVEST_QUANTITY}"
+      if [ ${g_calc_result} -eq 0 ]
       then
         g_echo_note "BUY ${f_ASSET} not enough balance (${CURRENCY_BALANCE}) for lowest quantity (MIN_NOTIONAL - ${f_INVEST_QUANTITY})"
         return 1
diff --git a/dabo/functions/check_sell_conditions.sh b/dabo/functions/check_sell_conditions.sh
index 6887483..d0cd1be 100644
--- a/dabo/functions/check_sell_conditions.sh
+++ b/dabo/functions/check_sell_conditions.sh
@@ -35,10 +35,12 @@ function check_sell_conditions {
   fi 
 
   # result values (sould be reduced to one - f_result!?)
-  f_result=$(g_percentage-diff ${f_BUY_PRICE} ${f_price})
+  g_percentage-diff ${f_BUY_PRICE} ${f_price}
+  f_result=${g_percentage_diff_result}
   f_BUY_PRICE_LAST_RATE_DIFF=${f_result}
   result=${f_BUY_PRICE_LAST_RATE_DIFF}
-  f_real_result=$(g_calc "${f_result}-${FEE}")
+  g_calc "${f_result}-${FEE}"
+  f_real_result=${g_calc_result}
 
   # analyze
   [ -z "${BOT}" ] && echo "INTERIM RESULT: ${f_real_result}%"
@@ -104,9 +106,10 @@ function check_sell_conditions {
 #    echo "${csv_headline},Marketperformace
 #${f_last_line}" | cut -d, -f 2-22 | perl -pe 's/([0-9].[0-9][0-9][0-9][0-9][0-9][0-9])[0-9]+/$1/g' |  perl -pe 's/((?<=,)|(?<=^)),/ ,/g;' | column -t -s,
 #    echo "${f_SELL}"
-    #result=$(g_percentage-diff ${BUY_PRICE} ${current})
-    result=$(g_percentage-diff ${BUY_PRICE} ${f_price})
-    result=$(g_calc "${result}-${FEE}")
+    g_percentage-diff ${BUY_PRICE} ${f_price}
+    #result=${g_percentage_diff_result}
+    g_calc "${g_percentage_diff_result}-${FEE}"
+    result=${g_calc_result}
     echo "${result}" >>${g_tmp}/result-${tmpfile}
     rm -f "${f_TRADE_HIST_FILE}"
     rm -f "${f_TRADE_HIST_FILE_INTERIM}"
diff --git a/dabo/functions/get_asset.sh b/dabo/functions/get_asset.sh
index 79afa0c..456a7a7 100644
--- a/dabo/functions/get_asset.sh
+++ b/dabo/functions/get_asset.sh
@@ -67,7 +67,8 @@ function get_asset {
     if echo $f_last_price | grep -q "^[0-9]"
     then
       f_price=$(tail -n1 ${f_ASSET_HIST_FILE} | cut -d, -f2)
-      local f_price_change=$(g_percentage-diff ${f_last_price} ${f_price})
+      g_percentage-diff ${f_last_price} ${f_price}
+      local f_price_change=${g_percentage_diff_result}
     else
       local f_price_change=""
     fi
diff --git a/dabo/functions/get_macd_indicator.sh b/dabo/functions/get_macd_indicator.sh
index bbf6210..db57c15 100644
--- a/dabo/functions/get_macd_indicator.sh
+++ b/dabo/functions/get_macd_indicator.sh
@@ -109,7 +109,10 @@ function get_macd_indicator {
   if [ $(tail -n36 "${f_hist_file}" | wc -l) -ge 35 ]
   then
     local f_macd_histogram_max=$(tail -n350 "${f_hist_file}" | cut -d"," -f8 | egrep "^[0-9]|^-[0-9]" | sed 's/^-//' | sort -n | tail -n1)
-    local f_macd_histogram_relation=$(echo "100+$(g_percentage-diff ${f_macd_histogram_max} ${f_macd_histogram})" | bc | sed 's/^\./0./; s/^-\./-0./' | cut -d\. -f1)
+    g_percentage-diff ${f_macd_histogram_max} ${f_macd_histogram}
+    #local f_macd_histogram_relation=$(echo "100+$(g_percentage-diff ${f_macd_histogram_max} ${f_macd_histogram})" | bc | sed 's/^\./0./; s/^-\./-0./' | cut -d\. -f1)
+    g_calc "100+${g_percentage_diff_result}"
+    local f_macd_histogram_relation=${g_calc_result}
   fi
   
   echo -n ",${f_macd_histogram_relation}|${f_macd_signal}" >>"${f_hist_file}"
diff --git a/dabo/functions/get_rsi_indicator.sh b/dabo/functions/get_rsi_indicator.sh
index 6d62229..5465bb8 100644
--- a/dabo/functions/get_rsi_indicator.sh
+++ b/dabo/functions/get_rsi_indicator.sh
@@ -20,28 +20,6 @@ function get_rsi_indicator {
     return 0
   fi
   
-#  for f_price in $(tail -n${f_period} "${f_hist_file}" | cut -d"," -f2)
-#  do
-#    # not for the first line because a comparative value is missing
-#    if [ -z "${f_last_price}" ] 
-#    then
-#      f_last_price=${f_price}
-#      continue
-#    fi
-#   
-#    # calculate each change
-#    local f_price_change=$(g_percentage-diff ${f_last_price} ${f_price})
-#    f_last_price=${f_price}
-#    
-#    # add positive/negative changes
-#    if echo "${f_price_change}" | grep -q '^-'
-#    then
-#      f_negative_sum=$(echo "${f_negative_sum}+${f_price_change}" | bc -l)
-#    else
-#      f_positive_sum=$(echo "${f_positive_sum}+${f_price_change}" | bc -l)
-#    fi
-#  done
- 
   f_positive_sum=$(tail -n${f_period} "${f_hist_file}" | cut -d"," -f3 | grep "^[0-9]" | awk "{ SUM += \$1} END { printf(\"%10.10f\", SUM/${f_period}) }")
   f_negative_sum=$(tail -n${f_period} "${f_hist_file}" | cut -d"," -f3 | grep "^-[0-9]" | awk "{ SUM += \$1} END { printf(\"%10.10f\", SUM/${f_period}) }")
 
diff --git a/dabo/functions/get_vars_from_csv.sh b/dabo/functions/get_vars_from_csv.sh
index f3731b1..83fee59 100644
--- a/dabo/functions/get_vars_from_csv.sh
+++ b/dabo/functions/get_vars_from_csv.sh
@@ -45,7 +45,8 @@ function get_vars_from_csv {
   get_var_from_line price_change 3
  
   # Check for price trend last 4 iterations
-  f_last_4_prices_change=$(g_percentage-diff ${f_4_last_line_array[2]} ${f_price})
+  g_percentage-diff ${f_4_last_line_array[2]} ${f_price}
+  f_last_4_prices_change=${g_percentage_diff_result}
   
   if g_num_is_higher ${f_last_4_prices_change} 0
   then 
diff --git a/dabo/functions/market_performance.sh b/dabo/functions/market_performance.sh
index 90986e0..924796d 100644
--- a/dabo/functions/market_performance.sh
+++ b/dabo/functions/market_performance.sh
@@ -28,7 +28,8 @@ function market_performance {
     g_echo_warn "Didn't get correct forecast from $f_url"
     return 1
   fi
-  local f_btc_forecast=$(g_percentage-diff ${f_today} ${f_forecast})
+  g_percentage-diff ${f_today} ${f_forecast}
+  local f_btc_forecast=${g_percentage_diff_result}
   echo $f_btc_forecast | egrep -q '[0-9]\.[0-9]' || return 1
   g_echo_note "BTC forecast: $f_btc_forecast"
   f_btc_forecast=$(echo "scale=2; ${f_btc_forecast}/3" | bc -l | sed -r 's/^(-?)\./\10./')
@@ -53,7 +54,8 @@ function market_performance {
     g_echo_warn "Didn't get correct forecast from $f_url"
     return 1
   fi
-  local f_eth_forecast=$(g_percentage-diff ${f_today} ${f_forecast})
+  g_percentage-diff ${f_today} ${f_forecast}
+  local f_eth_forecast=${g_percentage_diff_result}
   echo $f_eth_forecast | egrep -q '[0-9]\.[0-9]' || return 1
   g_echo_note "ETH forecast: $f_eth_forecast"
   f_eth_forecast=$(echo "scale=2; ${f_eth_forecast}/3" | bc -l | sed -r 's/^(-?)\./\10./')
@@ -82,7 +84,8 @@ function market_performance {
       local f_index_performance="-0.1"
     else
       # calculate performance
-      local f_index_performance=$(g_percentage-diff ${f_from} ${f_to})
+      g_percentage-diff ${f_from} ${f_to}
+      local f_index_performance=${g_percentage_diff_result}
     fi
     # if growing is bad for krypto - invert
     if echo ${f_INDEX} | grep -q INVERTED
@@ -133,17 +136,9 @@ function market_performance {
   done
 
   # price performance bitcoin
-  #local f_from=$(tail -n 48 asset-histories/BTC${CURRENCY}.history.csv | head -n 24 | cut -d, -f2  | awk '{ sum += $1; n++ } END { if (n > 0) print sum / n; }')
-  #local f_to=$(tail -n 24 asset-histories/BTC${CURRENCY}.history.csv | cut -d, -f2  | awk '{ sum += $1; n++ } END { if (n > 0) print sum / n; }')
-  #local f_exchange_rate_diff_percentage=$(g_percentage-diff ${f_from} ${f_to})
-  #local f_btc_performance=${f_exchange_rate_diff_percentage}
   local f_btc_performance=$(jq -r '.[] |select(.symbol=="btc")|(.price_change_percentage_7d_in_currency)' COINGECKO_GET_ASSETS_CMD_OUT)
    
   # price performance ethereum
-  #local f_from=$(tail -n 48 asset-histories/ETH${CURRENCY}.history.csv | head -n 24 | cut -d, -f2  | awk '{ sum += $1; n++ } END { if (n > 0) print sum / n; }')
-  #local f_to=$(tail -n 24 asset-histories/ETH${CURRENCY}.history.csv | cut -d, -f2  | awk '{ sum += $1; n++ } END { if (n > 0) print sum / n; }')
-  #local f_exchange_rate_diff_percentage=$(g_percentage-diff ${f_from} ${f_to})
-  #local f_eth_performance=${f_exchange_rate_diff_percentage}
   local f_eth_performance=$(jq -r '.[] |select(.symbol=="eth")|(.price_change_percentage_7d_in_currency)' COINGECKO_GET_ASSETS_CMD_OUT)
 
   # hourly price performance  over TOP 250 marketcap by coingecko
diff --git a/dabo/functions/score.sh b/dabo/functions/score.sh
index 1a9039f..52dfa61 100644
--- a/dabo/functions/score.sh
+++ b/dabo/functions/score.sh
@@ -1,6 +1,7 @@
 function score {
   #s_score=$((s_score${1}))
-  s_score=$(g_calc "${s_score} + ${1}")
+  g_calc "${s_score} + ${1}"
+  s_score=${g_calc_result}
   #echo " SCORE: s_score=${s_score} ($1) $2"
   s_score_hist="${s_score_hist}
 s_score=${s_score} (${1}) ${2}"
diff --git a/dabo/functions/webpage.sh b/dabo/functions/webpage.sh
index 354be93..38bf57f 100644
--- a/dabo/functions/webpage.sh
+++ b/dabo/functions/webpage.sh
@@ -203,7 +203,8 @@ function webpage {
           local f_profit=$(cat "${f_trade_file}.result")
           f_price="${f_price} ( ${f_profit}%)"
         else
-          local f_profit=$(g_percentage-diff $(cat ${g_tmp}/buyprice) ${f_price})
+          g_percentage-diff $(cat ${g_tmp}/buyprice) ${f_price}
+          local f_profit=${g_percentage_diff_result}
           f_price="${f_price} ( ${f_profit}%)"
           echo "${f_profit}" >"${f_trade_file}.result"
         fi
diff --git a/dabo/recalc-histories-example.sh b/dabo/recalc-histories-example.sh
index f68d116..1592c6d 100644
--- a/dabo/recalc-histories-example.sh
+++ b/dabo/recalc-histories-example.sh
@@ -32,7 +32,8 @@ function get_asset {
       if echo $f_last_price | grep -q "^[0-9]"
       then
         local f_price=$(tail -n1 ${f_ASSET_HIST_FILE} | cut -d, -f2)
-        local f_price_change=$(g_percentage-diff ${f_last_price} ${f_price})
+        g_percentage-diff ${f_last_price} ${f_price}
+        local f_price_change=${g_percentage_diff_result}
       else
         local f_price_change=""
       fi
diff --git a/dabo/recalc-times-before-example.sh b/dabo/recalc-times-before-example.sh
index 0ec75b8..8fe540d 100644
--- a/dabo/recalc-times-before-example.sh
+++ b/dabo/recalc-times-before-example.sh
@@ -47,24 +47,28 @@ function get_asset {
       price30before=$(grep "^$timebefore" "$rawhistfile" | cut -d, -f2)
       [ -z "$price30before" ] && continue
       local price=$(echo ${f_line} | cut -d, -f2)
-      change30before=$(g_percentage-diff $price30before $price)
+      g_percentage-diff $price30before $price
+      change30before=${g_percentage_diff_result}
       #echo "XXXXXXX  g_percentage-diff $price30before $price -> $change30before "
    
 
       timebefore=$(date "+%Y-%m-%d %H:%M"  -d "$time 14 day ago")
       price14before=$(grep "^$timebefore" "$rawhistfile" | cut -d, -f2)
       [ -z "$price14before" ] && continue
-      change14before=$(g_percentage-diff $price14before $price)
+      g_percentage-diff $price14before $price
+      change14before=${g_percentage_diff_result}
 
       timebefore=$(date "+%Y-%m-%d %H:%M"  -d "$time 7 day ago")
       price7before=$(grep "^$timebefore" "$rawhistfile" | cut -d, -f2)
       [ -z "$price7before" ] && continue
-      change7before=$(g_percentage-diff $price7before $price)
+      g_percentage-diff $price7before $price
+      change7before=${g_percentage_diff_result}
 
       timebefore=$(date "+%Y-%m-%d %H:%M"  -d "$time 1 day ago")
       price1before=$(grep "^$timebefore" "$rawhistfile" | cut -d, -f2)
       [ -z "$price1before" ] && continue
-      change1before=$(g_percentage-diff $price1before $price)
+      g_percentage-diff $price1before $price
+      change1before=${g_percentage_diff_result}
 
       #echo "$f_line -- $change1before,$change7before,$change14before,$change30before"