回答:
合計を取得するには、価格セルをクリックしてから:
Callout 1 On the Home tab, click the Sum button in the Editing group.
Callout 2 A color marquee surrounds the cells in the formula, and the formula appears in price cell.
Callout 3 Press ENTER to display the result in price cell .
Callout 4 Click in price cell to display the formula in the formula bar.
Callout 5 Write there =SUM(Stock cell number,-(Price cell number))