Answer:
($16,2470.30)
Step-by-step explanation:
After-tax cash flow = After-tax net income + Depreciation
After-tax cash flow = $3,000 + $28,000
After-tax cash flow = $31,000
Net present value = Purchase cost + After-tax cash flow*PVIFA(%, n)
Net present value = -$84,000 + $31,000*PVIFA(9%, 3)
Net present value = -$84,000 + $31,000*2.5313
Net present value = -$84,000 + $78,470.30
Net present value = -$16,2470.30