Prepare a horizontal analysis of the income statement data for Riverbed Corp, using 2021 as a base. (If amount and percentage are decrease show the numbers as negative, e.g. 55,000,20% or (55,000),(20%). Round percentages to 1 decimal place, e.g. 12.1%. Prepare a vertical analysis of the income statement data for Riverbed Corp for both years. (Round percentages to 1 decimal place, e 12.1\%.) Current Attempt in Progress Here are the comparative income statements of Riverbed Corp