Please i need help on how to calculate 10%(handling charge) and 5%(vat ) of a sub-total on my form. A step-by-step will help a lot. I have attached the form also.
I simply added the Formcalc script to the calculate event of the Handling Fee and the Grand Total. Note that your 2nd subtotal field is called FederalTax ...nit sure if that is what you intended.
