I have a finance word problem asking to calculate the pretax cost savings? This is the information provided: A proposed cost-saving device has an installed cost of $770,000. The device will be used in a five-year project but is classified as three-year MACRS property for tax purposes. The required initial net working capital investment is $69,000, the marginal tax rate is 22 percent, and the project discount rate is 10 percent. The device has an estimated Year 5 salvage value of $106,000. What level of pretax cost savings do we require for this project to be profitable? (I have included the MACRS schedule)

Property Class Year Three-Year Five-Year Seven-Year 33.33% 20.00% 14.29% 44.45 32.00 24.49 14.81 19.20 17.49 7.41 11.52 12.49 11.52 8.93 5.76 8.92 8.93 4.46