diff --git a/gaboshlib/g_percentage-diff.bashfunc b/gaboshlib/g_percentage-diff.bashfunc
index e59444a..a09afbf 100644
--- a/gaboshlib/g_percentage-diff.bashfunc
+++ b/gaboshlib/g_percentage-diff.bashfunc
@@ -9,5 +9,6 @@ function g_percentage-diff {
   g_calc "${g_to} == 0"
   [ ${g_calc_result} -eq 1 ] && return 1
   g_calc "100/${g_from}*(${g_to}-${g_from})"
-  g_percentage_diff_result=$(printf -- "%.2f" "${g_calc_result}")
+  #g_percentage_diff_result=$(printf -- "%.2f" "${g_calc_result}")
+  printf -v g_percentage_diff_result -- "%.2f" "${g_calc_result}"
 }