23- The investment of $500,000 at time zero for depreciable machinery and equipment will generate revenues for 5 years that increase with constant gradient of $10,000 each year. Operating cost start with $50,000 in year 1 and increase each year with $10,000. The initial investment will depreciated over 7 years using modified ACRS depreciation starting in year with half year convention. Assume zero salvage value. Effective income tax rate s 50%. What breakeven sales revenue is needed each year to get 25% DCFROR on this investment