Hi to all, this is what I am looking for and don't know if can be done, we have the data in 3 cells, one is for the initial value, second is for the qty. to add to the first one and the third is for the qty. to substract if is needed. In a fourth cell we want to have the result of the three cells.
Initially if the 2nd and 3rd are zero the value on the 4th will be the same as the 1st, if we change the value on the 2nd, the value on the 4th will change adding this value, if change again now the value on the 4th will change from it's last value by that amount changed on 2nd or 3rd.
In other words the 4th cell is like a memory and always will have the last result from the last inputs on the addition or substracting cells.
Initially if the 2nd and 3rd are zero the value on the 4th will be the same as the 1st, if we change the value on the 2nd, the value on the 4th will change adding this value, if change again now the value on the 4th will change from it's last value by that amount changed on 2nd or 3rd.
In other words the 4th cell is like a memory and always will have the last result from the last inputs on the addition or substracting cells.