Thanks in advance for your help and time on this. I created a bulk item inventory were you basically have 2 layouts. One too add material and the other to remove material. What I am wondering is how do I make it so that the remove material (quantity) field always is negative even if I put in -98 or 98. these remove and add windows both refer back to the same table and same quantity column. The idea is to have a column total for each material. Thanks again for your help and time.