Final answer:
To determine whether the independent contractor should upgrade her current vehicle or trade it in to lease a new vehicle, we can calculate the Equivalent Uniform Annual Cost (EUAC) of both alternatives. The alternative with the lower EUAC is the more cost-effective option.
Step-by-step explanation:
In order to determine whether the independent contractor should upgrade her current vehicle or trade it in to lease a new vehicle, we can calculate the Equivalent Uniform Annual Cost (EUAC) of both alternatives. For the upgrade option, the initial investment is $4,900 for immediate upgrades, followed by annual operating costs of $1,700. At the end of 6 years, the upgraded vehicle will have a salvage value of $3,700.
For the lease alternative, the trade-in value of the current vehicle is $9,000, with $4,400 due at lease signing. The annual lease and operating costs are $2,900. The MARR is 11%, which will be used to calculate the EUAC.
To calculate the EUAC for each alternative, we discount all the cash flows to the present value and convert them to a uniform annual cost. The alternative with the lower EUAC is the more cost-effective option.