I am trying to keep an inventory of ware house. How do i have my "total" (say
1000 apples) in 1 column and another column have "recieved" (say i get 500
more apples). how do i get them to sum the added, and stay at 1500 apples, so
the next time when i get 200 more apples i can type in 200 and it goes to
1700. so on and so on. i basically need to get around the reoccurring
circle, but i can figure it out even when i enable it.