Five years ago, a company was considering the purchase of 68 new diesel trucks that were 14.63% more fuel-efficient than the ones the firm is now using. The company uses an average of 10 million gallons of diesel fuel per year at a price of $1.25 per gallon. If the company manages to save on fuel costs, it will save $1.875 million per year (1.5 million gallons at $1.25 per gallon). On this basis, fuel efficiency would save more money as the price of diesel fuel rises (at $1.35 per gallon, the firm would save $2.025 million in total if he buys the new trucks).

Consider two possible forecasts, each of which has an equal chance of being realized. Under assumption #1, diesel prices will stay relatively low; under assumption #2, diesel prices will rise considerably. The 68 new trucks will cost the firm $5 million. Depreciation will be 25.49% in year 1, 38.5% in year 2, and 36.35% in year 3. The firm is in a 39% income tax bracket and uses a 9% cost of capital for cash flow valuation purposes. Interest on debt is ignored. In addition, consider the following forecasts:

Forecast for assumption #1 (low fuel prices):

	Price of Diesel Fuel per Gallon
Prob. (same for each year)	Year 1	Year 2	Year 3
0.1	$0.8	$0.91	$1.01
0.2	$1.02	$1.12	$1.09
0.3	$1.12	$1.22	$1.32
0.2	$1.31	$1.45	$1.47
0.2	$1.4	$1.55	$1.61
Forecast for assumption #2 (high fuel prices):
	Price of Diesel Fuel per Gallon
Prob. (same for each year)	Year 1	Year 2	Year 3
0.1	$1.23	$1.53	$1.72
0.3	$1.31	$1.7	$1.99
0.4	$1.83	$2.32	$2.5
0.2	$2.22	$2.52	$2.81

Required: Calculate the percentage change on the basis that an increase would take place from the NPV under assumption #1 to the probability-weighted (expected) NPV.