Anyone: the price of fish in 1997 increased by 8% in 1998 to 9% in the three-year period 1999-2001 by 17%. What percent price increased throughout the period 1997-2001?
Let the price at the beginning of 1997 be x
Price at end of 1997 = 1.08*x
Price at end of 1998 = 1.09*1.08*x
Price at end of 2001 = 1.17*1.09*1.08*x
overall increase in price = 1.17*1.09*1.08*x - x
As a percent of the original price this is ((1.17*1.09*1.08*x - x)/x)*100 or
(1.17*1.09*1.08-1)*100
Or approximately 37.73%
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