This section explains how to calculate the profit margin as a percentage for the full year. To do this, perform the following steps:
Select cell D15, which is below the profit margin for December.
On the Home tab, in the Editing group, click the AutoSum button (see Figure 1-23).
Figure 1-23. Calculating the sum with one mouse click.
The sum is automatically calculated and displayed in the Profit Margin column (see Figure 1-24).
Figure 1-24. Simplified calculation options with table formatting.