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

Account	Date	Amount
1111	1 Jan	56
1111	31 Jan	14
2222	25 Feb	23
3333	3 Jan	32
3333	15 Feb	25
3333	4 Mar	64

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

Account	Date	Amount	Running Total
1111	1 Jan	56	56
1111	31 Jan	14	70
2222	25 Feb	23	23
3333	3 Jan	32	32
3333	15 Feb	25	57
3333	4 Mar	64	121

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

---

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

OPEN tablename

ASSIGN v_running_total =0.00
ASSIGN v_account = blank(4)

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