You have to recalculate this in the interactivechange of any textbox involved in the final result.

>I have 4 textboxes in my form.
>Box 1 is to enter Amount $$ borrowed, Box 2 to enter the interest rate, Box 3 to enter the number of days and Box 4 to show the result of Amount*interest rate*days/36000. I have put the formula in the Interactive Change property of Box4 but sometimes, it does not show the result when I make a change to either Box 1,2 or 3. Please help.