OT: Please help w/ the Penultimate Spreadsheet

[kevstreet]

This is probably more appropriate in the Computer Forum but I get quicker responses in STT and I hope some still use the Penultimate spreadsheet here as well. Anyway, I started including O8 games in my spreadsheet but I want to take those results out and start a new one for them. My problem is that when I delete the cells w/ that info the statistics page gets all crazy and doesn't calculate correctly. How can I delete but still keep the stats from going gibberish on me?

Any help is greatly appreciated.