1. press the button Enter to agree to the picture below.Tip: use the total spots for both vertical and horizontal columns.The calculations automatically.When you fill in a number in a cell and have Excel calculation, to calculate, but when there are changes to the value in the cell. If not, Excel, Excel does not calculate automatically calculates the settings to automatically do this.1. on the Ribbon to the file > options.2. to open the Options window, click in the formula bar.3. If the circle in front of the word "auto" on the calculation workbook has not been selected, there will be no automatic calculation.4. click the picture.
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