How to Calculate the Percent of a Quarter Passed in Excel

1. Open a new Microsoft Excel spreadsheet.
2. Click on cell 'A1' and enter the first day of the quarter. Then click on cell 'A2' and enter the last day of the quarter. Finally, click on cell 'A3' and enter in the date with which you want to determine the percentage of the quarter passed.
3. Click cell 'B1' and enter in the following:=A3-A1This will tell you how many days into the quarter you are. Click cell 'B2' and enter the following:=A2-A1This will tell you how many total days there are in the quarter.
4. Click on cell 'B3' and enter the following:=B1/B2This will give you your percentage in decimal form. Right-click the cell and choose 'Format cells.' Select 'Percentage' from the list on the left side and click 'OK.' Your result will now display as a percentage.