zoho creator panel add formula

zoho creator panel add formula

Hello.

I'm using zoho panels which works good for me but i need to add an extra calculation the predefined sum function provided by zoho. not sure if this is possible?

The code zoho is generating for the sum is as follows;

  1. <text margin='0px' padding='0px' color='#000000' size='36px' bold='true' type='Form Data' bgColor='#CB6711' cornerRadius='0px' displayType='actual' thousandsSeperator='LOCALE' decimalSeperator='DOT' numberScale='none' criteria='Location.Location_Name == &quot;Orange Zone&quot;' value='thisapp.Batch_Info.Total_Stock.sum'> </text>
I need to be able to take the value of this sum and minus it from a number, so if sum equals 500 for example and the fixed number is 4000 i need the sum value on the panel to show 3500

this is the panel i'm referring too.