So this is for my accounting annual report project for Facebook. It asked me to make a spreadsheet which is what the theirs picture is. Im unsure if I did it correctly so far but Im not sure on how to get the formulas its asking for in columns E F and G.

FURTHER ANALYSIS 4. Prepare common-size income statements for the three years presented, expressing each income statement item as a percentage of total revenue. (Total revenue = 100%). (Refer to the discussion of vertical analysis in your textbook.) Use a spreadsheet program to do this part of the assignment Label the spreadsheet "Common Size Analysis-Income Statement.List the revenue and expense classifications in column A, the amounts for the three years in columns B, C, and D. In columns E, F and G, use a formula to convert thee amounts to percentages INFORMATION FOR DECISION MAKING