Please see attached question, this is an advanced corporate finance question and I only have one chance to submit so my first attempt has to be correct. :)

A proposed cost-saving device has an installed cost of $630,000. 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 $45,000, the marginal tax rate is 34 percent, and the project discount rate is 10 percent. The device has an estimated Year 5 salvage value of $70,000. What level of pretax cost savings do we require for this project to be profitable? Table 8.3. (Do not round intermediate calculations and round your final answer to 2 decimal places (e.g., 32.16).) Pretax cost savings $