The Gentle Warming Company is purchasing a new cooling system. To pay for the system, the company agrees to make 12 installment payments of $5133 per year, beginning at the end of year 1. The company also has to pay a system fee of $2298 that will begin at the end of year 1 and decrease by $155 per year until the system is paid off. How much should the company set aside today to pay for the cooling system if the bank pays 3% per year compounded annually?
Annual total cost = Installment payment + System fee
PV factor in year N = (1.03)-N
Present worth (PW) of total cost is computed as follows.
Year | Installment ($) | System Fee ($) | Total cost ($) | PV Factor @3% | Discounted Total cost ($) |
(A) | (B) | (C)=(A)+(B) | (D) | (C)x(D) | |
1 | 5,133 | 2,298 | 7,431 | 0.9709 | 7,215 |
2 | 5,133 | 2,143 | 7,276 | 0.9426 | 6,858 |
3 | 5,133 | 1,988 | 7,121 | 0.9151 | 6,517 |
4 | 5,133 | 1,833 | 6,966 | 0.8885 | 6,189 |
5 | 5,133 | 1,678 | 6,811 | 0.8626 | 5,875 |
6 | 5,133 | 1,523 | 6,656 | 0.8375 | 5,574 |
7 | 5,133 | 1,368 | 6,501 | 0.8131 | 5,286 |
8 | 5,133 | 1,213 | 6,346 | 0.7894 | 5,010 |
9 | 5,133 | 1,058 | 6,191 | 0.7664 | 4,745 |
10 | 5,133 | 903 | 6,036 | 0.7441 | 4,491 |
11 | 5,133 | 748 | 5,881 | 0.7224 | 4,249 |
12 | 5,133 | 593 | 5,726 | 0.7014 | 4,016 |
PW of Cost ($) = | 66,025 |
Money to be set aside today = $66,025
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