Hello I need the step by step solution to solving this problem in excel. please. thank you so much!!!

A proposed cost-saving device has an installed cost of $650,000. The device will be used in a ve-year project but is classified as three-year MACRS property for tax purposes. The required initial net working capital investment is $60,000, the marginal tax rate is 21 percent, and the project discount rate is 10 percent. The device has an estimated Year 5 salvage value of $53,000. What level of pretax cost savings do we require for this project to be protable? MACRS schedule. (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)