please help, preferably written out not in excel

A firm is trying to determine the cash flow from selling an old computer system to an interested buyer. The computer system.was purchased five years ago for $445,754.00. The system was depreciated using the 7-year MACRS schedule. The firm has an offer this morning for $71,093.00. The tax rate facing the firm is 38.00%. The firm will only accept the offer if it generates a cash flow greater than $49,769.00. What is the NSV from selling the computer system today? Answer format: Currency: Round to: 2 decimal places