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The column properties ( ) option for each column is enabled only after the Sum-up row is inserted.
The Edit column dialog opens. Click the Sum-up type drop-down and select the required type. For reference, Avg is selected.
The Tax column displays the average (Avg) value. Likewise, you can choose the Sum-up type for each column as required.
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Quickly switch the Sum-up type with a sequence of clicks on the specific column Sum-up value without opening the Edit column dialog. Each click changes the displayed values between Sum, Average, and None.
The Sum value is displayed by default.
Click the Tax column Sum-up value, and the column will display the Avg value.
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