5 years and one comment. Thanks. I am a newbie at spreadsheets and libre calc's help files are extremely complicated, not newbie friendly at all. I don't know the terminology or syntax, I can't figure out how to make it add and subtract and keep a running balance. I saw another of your videos and it was very good, but over my head. I hope when I get back to it, I will understand it better. Thanks for this series.