D 1 Expense History - use the detail below to help build the expense plan 2 Calculating expenses as a percent of product revenue will help you make decisions and build the expense plan 3 2020 2021 2022 2023 4 Marketing - Product A 5 Marketing - Product B 6 Commissions - Product A 7 Commissions - Product B 8 Administrative Expense 9 10 Selling and Admin Exp 100 210 140 300 500 1,250 109 182 153 365 520 1,329 195 144 146 346 550 1,381 154 Input these 5 expense lines 154 144 319 515 1,287 Calculated M N