Pull data from a currency field on previous record

Pull data from a currency field on previous record

Hello.

I've been off Zoho for a couple years and can't recall a few things.

I'm trying to create a simple checkbook registry. On the form I have a "Beginning balance" currency field and an "Ending balance" currency field. I would like to pull the number from the "Ending balance" currency field from the previous record and input that in the "Beginning balance" currency field for the new record on the "On load" work flow line. 

Any help is appreciated.

Thanks