I have a subform that calculates a total for amount paid with control named sumDelAmtPd and data is (=Sum([DelvBonusReceived]) where DelvBonusReceived is entered by user. This control is in the subform footer and data is being updated as user updates field in each record. On the main form I want to display this total so that it is updated as the user enter amounts for each record (kind of running total on main form). Main form has this in the text control =[DeliveryPaymentsSubform].[Form]![sumDelAmtPd]. If I update a field on the main form, the subform total displays correctly, but I want to be able to update the main form as the user updates the subform control. I tried multiple ways, and cant seem to get it. Any help is appreciated.