I was advised these two answers were incorrect - are you able to please help me troubleshoot? Thank you:

Gold Star Industries is contemplating a purchase of computers. The firm has narrowed its choices to the SAL 5000 and the HAL 1000. The company would need seven SALs, and each SAL costs $3,000 and requires $380 of maintenance each year. At the end of the computer's nine-year life, each one could be sold for $195. Alternatively, the company could buy five HALs. Each HAL costs $3,500 and requires $455 of maintenance every year. Each HAL lasts for seven years and has a resale value of $190 at the end of its economic life. The company will continue to purchase the model that it chooses today into perpetuity, and the tax rate is 25 percent. Assume that the maintenance costs occur at year-end. Depreciation is straight-line to zero. What is the EAC of each model if the appropriate discount rate is 12 percent? (Your answers should be a negative value and indicated by a minus sign. Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) SAL 5000 HAL 1000 $ $ 6,663.00 6,104.00