If the calculation isn't returning the correct percentage, it suggests there might be an issue with either the formula range or how the conditions are interpreted. Here are some troubleshooting steps to ensure accuracy:
1. Check the Range in the Formula
Verify that the range in the COUNTIFS formula (A2:A100 in my example) matches the actual range of your data. If your data extends beyond row 100, update the range.
=COUNTIFS(A2:A100, ">=0", A2:A100, "<=48") / COUNTIF(A2:A100, ">0")
2. Ensure the Data Contains Only Numbers
Check the column for non-numeric values, empty cells, or hidden characters (e.g., spaces). Non-numeric values could be causing unexpected results. Use ISNUMBER to validate the data:
=SUMPRODUCT(--ISNUMBER(A2:A100))
If the count doesn't match the expected total (15 in your example), clean the data.
3. Validate Positive Values
Ensure the COUNTIF(A2:A100, ">0") part accurately reflects all positive values. Check if any unexpected formatting or rounding errors are impacting the results.
4. Manually Verify the Results
Manually count the values between 0 and 48 and the total positive values. Compare them with the formula output to pinpoint discrepancies.
5. Revised Formula for Debugging
To isolate issues, you can temporarily calculate the numerator and denominator separately:
- Count values between 0 and 48:
=COUNTIFS(A2:A100, ">=0", A2:A100, "<=48")
- Count all positive values:
=COUNTIF(A2:A100, ">0")
- Use these intermediate results to verify the percentage calculation:
=Numerator / Denominator
6. Formatting Errors
Ensure the formula cell isn't formatted as a percentage with incorrect decimal places. For example, a result of 0.8 displayed as 97% could indicate the cell is mistakenly set to show 3 decimal places (e.g., 80.0%).