Answer:
a. $509,141
b. $189,495
Step-by-step explanation:
The computation of the net present value for each case is shown below:
a.
Net present value = Present value after considering the discount rate and salvage value - initial investment
where,
Present value is
= Incremental after tax income + depreciation expense
= $150,000 + ($520,000 - $10,000) ÷ 6 years
= $150,000 + $85,000
= $235,000
Now PVIFA factor at 6 years for 10% is 4.3553
So, present value is
= $235,000 × 4.3553
= $1,023,496
For salvage value, the present value is
= $10,000 × 0.5645 (Discounting factor)
= $5,645
So, total present values is
= $1,023,496 + $5,645
= $1,029,141
And, the initial investment is $520,000
So, the net present value is
= $1,029,141 - $520,000
= $509,141
b.
Net present value = Present value after considering the discount rate and salvage value - initial investment
where,
Present value is
= Incremental after tax income + depreciation expense
= $60,000 + ($380,000 - $20,000) ÷ 8 years
= $60,000 + $45,000
= $105,000
Now PVIFA factor at 6 years for 10% is 5.3349
So, present value is
= $105,000 × 5.3349
= $560,164.50
For salvage value, the present value is
= $20,000 × 0.4665 (Discounting factor)
= $9,330
So, total present values is
= $560,164.50 + $9,330
= $569,494.50
And, the initial investment is $380,000
So, the net present value is
= $564,494.50 - $380,000
= $189,495