For many firms, environmental regulation and oversight are converting external "social costs" to internal "real costs." TDE Industries is considering investing in equipment to reduce emissions. Without the investment they expect to incur fines and fees of $750,000 per year. TDE uses a 28% combined tax rate, an after-tax MARR of 20%, and will depreciate such equipment as a 5-year MACRS property. Management has asked you to determine the maximum amount they should pay for equipment to eliminate these fines. Use a 6-year study period. Assume no salvage value