The Following Shows the Salesmen Name, the Cell Where Their

The following shows the salesmen name, the cell where their quarterly total sales are stored in Excel, and the amount of quarterly sales. Which is the formula that can be used to find the percent of total sales for Marco Sartoro? Brent Dumont, E7: $135,000
Candice McAfferty E8: $210,500
Marco Santoro, E9: $195,000
Total Sales, E10: $540,500

A) =(E7 + E8 + E9) /3
B) =E9/E10*100
C) =E10/E9*100
D) =E9/(E7 + E8)