A new manufacturing machine is expected to cost $286,000, have an eight-year life, and a $30,000 salvage value. The machine will yield an annual incremental after-tax income of $35,000 after deducting the straight-line depreciation. Compute the payback period for the purchase.

	8.7 years.
	3.8 years.
	4.3 years.
	7.3 years.
	5.4 years.