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# Equivalent annual cost method

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You are contemplating converting your car from burning gasoline to propane.

The following information is available:

Propane conversion kit (parts and labor) \$750

Salvage value of kit after 5 years is \$100
Kilometres travelled per year 40,000
Gasoline consumption 8 liters per 100 km.
Average gasoline price over 5 years is 0.40 cents per liter.
Annual maintenance advantage burning propane is \$100
Propane is 10% cheaper and 10% more efficient.
The minimum attractive rate of return is 12%

Is the conversion justified economically?

Use equivalent annual cost method.

#### Solution Preview

See attached Excel file.

Is the conversion justified economically?
Use equivalent annual cost method.

Conversion cost= \$750
Salvage value (after 5 years)= \$100

Gasoline cost per year= \$1,280 =(40000/100)*8*0.4
Propane cost per year= \$1,047 =(40000/(1.1*100))*8*0.4*0.9