salestaxFromGross ( gross ; salexTaxPPT )
Gives you the tax part of the amount based on gross value
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Gjermund Gusland Thorsen
Function definition: (Copy & paste into FileMaker's Edit Custom Function window)
This function gives you the tax( tara ) from gross.
|Peter Neal, London
Sep 14, 2010
|I've adapted this custom function by adding the following:
Round( (salexTaxPPT / (100 + salexTaxPPT) * gross); 2)
This makes sure that only two decimal places are returned.
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