A running total is  a field that accumulates values by adding the current value with a previous total:

Transaction Date	Amount
Jan  1	50
Feb 1	60
Mar 1	45
Apr 1	35

The running total field will accumulate the total in the amount field.

Transaction Date	Amount	Running Total
Jan 1	50	50
Feb 1	60	110
Mar 1	45	155
Apr 1	35	190

In order to create the field "Running Total" one has to use a script:

---

COM****************************************************************
COM This is a standard running total script.
COM****************************************************************

OPEN tablename

ASSIGN v_running_total =0.00

GROUP
v_running_total = v_running_total + amount
EXTRACT FIELDS ALL v_running_total as "F Running Total" TO TEMP1
END