Calulate for division in Acrobat X

Question

How do I calulate for division in Acrobat X? I do not know javascript and it appears that for simple division this might be what I have to figure out--fast. Thank you.

Answer 1

I just notice  errors in the code:
The line:
var divisor = "Total Taxable Payroll";
Should be:
var cDivisor = "Total Taxable Payroll";
The line:
var cDividend = Total Benefit Charges";
Should be:
var cDividend = "Total Benefit Charges";
The line:
if(nDivisor != "") && Number(nDivisor) != 0 && !isNaN(Number(nDivisor))){ 
Should be:
if(nDivisor != "" && Number(nDivisor) != 0 && !isNaN(Number(nDivisor))){ 
// custom calculation script for the Benefit Ratio field
// change for the field names
var cDivisor = "Total Taxable Payroll";
var cDividend = "Total Benefit Charges";
// DO NOT MAKE ANY CHANGES  BELOW THIS LINE
// clear field value in cas no update
event.value = "";
// get the value of fields
var nDivisor = this.getField(cDivisor).valueAsString;
var nDividend = this.getField(cDividend).valueAsString;
// process if we have a non-blank numeric divisor
if(nDivisor != "") && Number(nDivisor) != 0 && !isNaN(Number(nDivisor))){  
event.value = nDividend / nDivisor;