I am trying to track the number of notecards that I am selling each month. I
set up a column that says sold, but I don't want to have to do the
calculations each time I sell one. I would like to enter 5 notecards sold
(let's say) and have that be added to the total sold list. The next day I
would delete 5 and enter 1o total sold and have that added to my total sold
list. how do I do this?!!