I have 3 GridNumericColumns and 2 GridCalculated columns. For the 1st calculated column, it is the product of GridNumericColumn1 and GridNumericColumn2. What I need for the second GridCalculated column is to take the product of GridNumericColumn1 and GridNumericColumn2 and multitply that by 1 minus the value that is in GridNumericColumn3. So if GridNumeric1 was 500 and GridNumeric2 was 10 and GridNumeric3 was 0.80, the calculation would be (500)*(10)*(1-0.8). When I put the value 1 in the expression (1-0.8), it thinks I'm referring to column1, but I want this to be the number 1. How would I go about doing this? Thanks.