I have 2 columns Received and Issued, what I want is to compute the 2 columns and show the result on Balance column.

for example:


i have a beginning balance of 100

I input 10 on received and no input on issued column on row(a)

now, if the issued column is equal to 0 then received
column will add to the beginning balance. and now the balance
is 110 on the row(a) where I input the "10".

Now, I input 30 on issued column and no input on recieved column on row(b)

then if the received column is 0 then issued column will subtract
to the balance of row(a) and the difference on Balance Column row(b) will be 80.


Anyone help me here. ..please. .

I need it on my report. .

Thanks in advance