### Title

Need running total calculation

### Post

I am trying to figure out how to have a running total yet not sure how to accomplish it.

I want to start with a number say 400.00, put 5.00 in "change" (this number will always change per entry), number * change = sub total then starting number (400.00) + sub total will = grand total. On the next entry the starting number would be the Grand total from the previous entry.

I'm not sure that I get how multiplying one number by another is supposed to produce a "running total".

Is this what you meant?

Number Total

400 400 (starting amount)

5 2000 (400 * 5)

3 6000 (2000 * 3 )

Or do you have a different progression of values in mind?