How to handle division by zero error in sap crystal report custom formula function

Question

Hi,
I have one report in that there is one custom function created called percentage when i run the report it give me error like division by zero. here is that function
Function (stringvar amount11,stringvar amount22)
stringvar amount1 := replace(replace(amount11,'.',''),',','');
stringvar amount2 := replace(replace(amount22,'.',''),',','');
if length(amount2) < 16 then
tonumber(amount1)*100/tonumber(amount2)
else
numbervar c:= length(amount2) - 15;
if length(amount1) > c then
stringvar amount3 := left(amount1,length(amount1)-c) + '.' + replace(replace(right(amount1,c),'.',''),',','');
tonumber(amount3)*100 /tonumber(left(amount2,15))
else
0
in RED highlighted area here i got that error. how i can resolve this one.
Kind Regards,
Ganesh

Answer 1

Hi Ganesh,
Change the formula in which the function is being called to:
stringvar amount22;
if amount22 = 0 then 0 else
Function (stringvar amount11,stringvar amount22);
-Abhilash