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When troubleshooting formulas in Excel, you can use keyboard shortcuts and Ribbon commands to help with auditing the formulas.
For example, press Ctrl + ` to see the formulas on the worksheet, instead of the formula results. Then, look down a column, to see if the calculations in all the rows look the same.
There is also a Show Formulas command on the Ribbon’s Formulas tab, that lets you turn this formula display on or off.
You can also trace the precedent and dependent cells for a formula, to see which cells are affected by a formula, and which cells it affects. Or, use a shortcut to go to those precedent or dependent cells.
Watch this video to see how to use these auditing features for formula troubleshooting.