Depreciation and accounting cash flow
A firm in the third year  of depreciating its only asset, which originally cost $180,000 and has a  5-year MACRS recovery period, has gathered the following data relative  to the current year's operations.
 
Accruals                $15,000
Current assets     $20,000
Interest expense $15,000
Sales revenue       400,000
Inventory                 70,000
Total costs before depreciation, interest, and taxes  290,000
Tax rate on ordinary income  40%
 
a. Use the relevant data to determine the operating cash flow (see Equations 4.2 and 4.3) for the current year.
b. Explain the impact that depreciation, as well as any other noncash charges, has on a firms cash flows.
 
Please provide your own work. Thanks.