ADOBE FORM-CALCULATION FORMULA

I have a Form that I need a calculated field in, but I don't know the scripting enough to do what I want.  Here is the formula in lamans terms.

((Field 2) - (Field 1) )/(Field 1)

This would then be a % output.
Thanks
Paula WardControllerAsked:
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gxp071Commented:

add the code below to the "Custom Calculation script:" of the textFeild calcuation tab.

Code below also rounds to 2 dp.  its basically just Javascript, read these for more details on using javascript in a pdf.  I'm just looking up how to append the '%' symbol but probably just a matter of adding at the end..

event.value = roundNumber( ( this.getField('Field 2').value - this.getField('Field 1').value  )  / this.getField('Field 1').value , 2 );
 
function roundNumber(num, dec) {
	var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
	return result;
}

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gxp071Commented:
yep just wack the % string on the end.  sorry left off the link last time

http://www.adobe.com/devnet/acrobat/javascript.html 


event.value = roundNumber( ( this.getField('Field 2').value - this.getField('Field 1').value  )  / this.getField('Field 1').value , 2 ) + '%';
 
function roundNumber(num, dec) {
        var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
        return result;
}

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0

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Paula WardControllerAuthor Commented:
Thanks this solution worked great!!
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