+ Formulas to Excel :]

First select the cell you want to use. My happens to be F4, now type =d4*e4, this will sum up the cost. Now I will select H4 and type =D4*G4. Once i put enter it will sum it up. Next I selected cell I4 and wrote=H4-F4. which subtracts the two. Select J4, and type =I4/F4. Now press enter and you are done.