Running Calc off a fix value

[rwn]

I have a Beginning Balance amount in a Group section, the details section shows the amounts (positive or negative) that have occurred over time.
What I need to do is have the detail section also show the current Balance based factored from the Beginning Balance.
Below is an example:
Group Account Number xxxx has a Beginning Balance of $100,000.00.
Details Section has for example 4 entries.
-50,000
+75,000
-10,000
-10,000
So for each amount above it need the following:
-50,000 running Beginning Balance = $50,000
+75,000 running Beginning Balance = $125,000
-10,000 running Beginning Balance = $115,000
-25,000 running Beginning Balance = $90,000.

Thank you in advance!

 

[Charliy]

Set up a running total that sums your transaction amount, and resets on change of Group.

I'm assuming you already have a formula or running total with your beginning balance.

create a formula {@beginningBalance} - {#RunningTotal} and put it in your detail section.