Calculating a value between a form and a subform

[Robert Massie]

Hello:

I need to calculate a value in a subform by a value in the
main form.

The test box value in the main form is calculated in the
main form (Net/Sale). It is not a field. Net and Sale are
fields in the main form.

I need to take the result of net/sale in the main form and
multiply it by values that I enter in the subform. In
other words if Net/Sale = .10 and I enter 10 and 20 as
values in the subform I need 1 and 2 to show up on the
subfrom.

Thank you
Robert