Gibson Electronics is considering investing in manufacturing equipment expected to cost $280,000. The equipment has an estimated useful life of four years and a salvage value of $ 15,000. It is expected to produce incremental cash revenues of $140,000 per year. Gibson has an effective income tax rate of 40 percent and a desired rate of return of 10 percent. (PV of $1 and PVA of $1)

1. Determine the net present value and the present value index of the investment, assuming that Gibson uses straight-line depreciation for financial and income tax reporting.

2. Determine the net present value and the present value index of the investment, assuming that Gibson uses double-declining-balance depreciation for financial and income tax reporting.

4. Determine the payback period and unadjusted rate of return (use average investment), assuming that Gibson uses straight-line depreciation.

5. Determine the payback period and unadjusted rate of return (use average investment), assuming that Gibson uses double-declining-balance depreciation. (Note: Use average annual cash flow when computing the payback period and average annual income when determining the unadjusted rate of return.)