View Paste B IUP A = = = = 2 = = O = Home Insert Page Layout Formulas Data Review & Cut Calibri (Body) - 11 A- A- = = Copy Format A6 , x fx A B C D E F G H 1 You started a business. Your Marketeing Guru wants to spend $10,000 of your money 2 on radio spots. Your contribution margin ratio is 20%. How much will sales need 3 to increase before you make any money from this expenditure? 4 As on all thes problems, show your work. I J