Determine the difference in the present worth of the following two commodity contracts at an interest rate of 8% per year. Contract 1 has a cost of $10,000 in year 1; this cost will escalate at a rate of 4% per year for ten years. Contract 2 has a present cost of $80,520.
$1,750 |
||
$1,845 |
||
$2,170 |
||
$1,930 |
The calculation for Contract 1 :
CONTRACT 1 | ||||||||
Year | Cost | Discount Factor @8% | Discounted Cash flow | |||||
1 | 10,000 | 0.9259 | 9,259 | |||||
2 | 10,400 | 0.8573 | 8,916 | |||||
3 | 10,816 | 0.7938 | 8,586 | |||||
4 | 11,249 | 0.7350 | 8,268 | |||||
5 | 11,699 | 0.6806 | 7,962 | |||||
6 | 12,167 | 0.6302 | 7,667 | |||||
7 | 12,653 | 0.5835 | 7,383 | |||||
8 | 13,159 | 0.5403 | 7,110 | |||||
9 | 13,686 | 0.5002 | 6,846 | |||||
10 | 14,233 | 0.4632 |
6,593 |
Hence, the total present worth of contact 1
=$(9259+8916+8586+8268+7962+7667+7383+7110+6846+6593) = $78590...
Total present worth of contract 2 = $80520..
Hence, the difference between present worth
= $80520 - $78590 = $1930..
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