Introduction In this module learn how to create formulas and charts use functions format cells and do more with your spreadsheets. If we want to insert a formula in Excel then we need to get into the edit mode of the cell where we want to apply and then type equal sign. For example you can use Excel to calculate the percentage of correct answers on a test discount prices using various percent assumptions or percent change between two values.
To subtract use the - sign.
To multiply use the sign. In addition to doing pretty complex calculations Excel can help you do simple arithmetic like adding subtracting multiplying or dividing any of your data. Example 2 Step 1. To add use the sign.