Percentage calculation and zero amount entries get dvision by zero error

Question

Hello, i am calculating the total of a field and then reporting the contributions of that line entry in percentage form but when a line has a zero amount i get an error of 'division by zero'.  I'll give some explamples below incase i'm not explaining very well.  If you replace the 225 under amount with 0 that is when i get the error.
code sample..
WhilePrintingRecords;
numbervar n := {@Total Weight}% Sum ({@Total Weight}, {JSALES_REPORT.SOPNUMBE});
data sample...
Amount      % of total
150             40%
225             60%
(375)

Answer 1

Hi Rod.
I'd recommend using and IF statement to deal with division by zero.  I'm not sure what you exactly want to do with records that have division 0 but I usually do the following to see which records are creating the div by zero errors and then decide how I want the values to be displayed after evaluating it.
WhilePrintingRecords;
if {whichever.field} = 0 then 9999999999  // this would be an indicator to me to take a look at this record
else
numbervar n := {@Total Weight}% Sum ({@Total Weight}, {JSALES_REPORT.SOPNUMBE}); // your original formula
You can then change the 99999999 number to whichever number you think should be viable to answer your business question on items that are divided by 0.
Hope this helps.