The TJ-700 and the Beta Turbomax are two models of cars of different manufacturers  These two models have almost identical specifications and features, and they sell for almost the same price  Both were introduced on the market five years ago, and each year, the respective manufacturers spend about the same amount in advertising  In the past five year, the total number of TJ-700' s sold is about 80% greater than the total number of Beta Turbomax' s sold
Clearly, the advertising firm that created TJ-700 ads created much more effective ads than the firm that created Beta Turbomax ads
What percentage the first two years maintenance costs of each model is of their respective advertising budgets.