Question

In: Accounting

Suppose we are thinking about replacing an old computer with a new one. The old one...

Suppose we are thinking about replacing an old computer with a new one. The old one cost us $1,210,000; the new one will cost $1,470,000. The new machine will be depreciated straight-line to zero over its five-year life. It will probably be worth about $210,000 after five years.

The old computer is being depreciated at a rate of $242,000 per year. It will be completely written off in three years. If we don’t replace it now, we will have to replace it in two years. We can sell it now for $330,000; in two years, it will probably be worth $111,000. The new machine will save us $281,000 per year in operating costs. The tax rate is 40 percent, and the discount rate is 11 percent.

a.

Calculate the EAC for the old computer and the new computer. (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.)

                  EAC
  New computer $   
  Old computer $   
b.

What is the NPV of the decision to replace the computer now? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)

Solutions

Expert Solution

a. EAC for old and New computer
New computer:
Cash inflow
Savings in operating cost after tax=281000*(1-0.40)=168600
Depreciation tax shield=(1470000/5)*0.40=117600
Salvage value after tax=210000*(1-0.38)=130200
Cashoutflow
Initial cost=1470000
NPV=-1470000+(168600+117600)*PV factor @11% for 5 years+130200*PV factor @11% for 5th year
NPV=-1470000+(286200*3.6959)+(130200*0.5935)=-334960
EAC=NPV/PV factor @11% for 5 years=-334960/3.6959=-90630
Old Computer:
Cash inflow
Depreciation tax shield=242000*0.40=96800
After tax salvage value in 2 years=Salvage value+(Book value-Salvage value)*Tax
After tax salvage value in 2 years=111000+(242000-110000)*0.40=163800
Initial cost will be the opportunity cost of selling the old computer today
Book value now will be the remaining depreciation=242000*3=726000
Initial cost=330000+(726000-330000)*0.40=488400
NPV=-488400+96800*PV factor @11% for 2 years+163800*PV factor @11% for 2nd year
NPV=-488400+(96800*1.7125)+(163800*0.8116)=-189690
EAC=NPV/PV factor @11% for 2 years=-189690/1.7125=-110768
Decision: Replace the old computer with new one today.
b. Year New computer Old
Computer
Diference PV @11% Present
Value
0 -1470000 -488400 -981600 1 -981600
1 286200 49400 236800 0.900901 213333.3
2 286200 49400 73000 0.811622 59248.44
163800
3 286200 0 286200 0.731191 209267
4 286200 0 286200 0.658731 188528.8
5 286200 0 416400 0.593451 247113.1
130200
Net present value -64109.3
You should not replace the old computer since NPV is negative.

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