Excel Formula Troubleshooting and Repair

My Excel workbook has several formulas that are no longer returning the right results, and the problem spans multiple formulas rather than a single cell or sheet. I need someone who can quickly trace the errors, correct the logic, and return a fully functioning file.

Once you have fixed the issues, please send back the repaired workbook along with brief cell comments or a short note outlining what went wrong and how you resolved it—this helps me maintain the sheet in the future. If anything looks structurally risky, feel free to suggest improvements while you are in there.

I will share the file as soon as we start so you can dive straight into debugging.