A bank error I don't know how to fix

[Anita Graves]

Dear GnuCash friends,

I made a mistake in the written form I prepared for a bank deposit.  I did not add it correctly, and I claimed a deposit of 50 cents more than the cash I gave to the teller.  The bank did not notice this and gave me a receipt for the amount I had declared in writing.

Now I have a 50 cent error in my Gnucash file and don’t know how to fix it.

Please help.  Thanks very much,
Anita Graves