I have a form that has date, line, shift, end units, and theoretical output. For any day there is always 3 shifts. To get a formula that I need, I need to get the sum of [endunits] for the day and divide it by the sum of [theoreticaloutput] for that day as well. so it needs to add 3 endunit fields, and 3 theoreticaloutput fields and then divide........ help!!