A company operates in a perfectly competitive market, selling each unit of output for a price of $30 and paying the market wage of $405 per day for each worker it hires. In the following table, complete the column for the marginal revenue product of labor (MRP) at each quantity of workers. Labor Output Marginal Product of Labor Marginal Revenue Product of Labor (Number of workers) (Units of output) (Units of output) (Dollars) 0 0 - - 1 20 20 2 39 19 3 57 18 4 72 15 5 84 12