Required A Required B Required Managers estimate that one of the proposed stores will have revenues of $4.5 million. What are the estimated monthly overhead costs, assuming no inflation? (Do not round variable cost percentage for your calculations. Round your intermediate calculations to the nearest whole dollar. Enter your answer in thousands of dollars.) Store costs Required A Required B Required C Managers are also considering a "mega-store" with revenues of $30 million. What are the estimated monthly overhead costs, assuming no inflation? (Do not round variable cost percentage for your calculations. Round your intermediate calculations to the nearest whole dollar. Enter your answer in thousands of dollars.) Store costs