In 2016, the automobile industry announced the average vehicle selling price was $35,033. Four years earlier, the average price was $27,880. What was the annual percentage increase in vehicle selling price? (Do not round intermediate calculations and round your final answer to 2 decimal places.) (Omit % sign in your response.)
Given, Initial Price = $ 35,033
Final price = $ 27,880
No.of years = 4 years
Growth can be measured in two ways
1. Calculating Percent (Straight-Line) Growth Rates
Percent Rate = ((Final price - Initial price) / Initial price) *100
= ( ($35,033 - $ 27,880) / $ 27,880 ) * 100 = 25.65%
Therefore, annual growth = Percent rate / no.of years = 25.65% / 4 = 6.41 %
Answer: 6.41% annual growth using Striaght line method.
2. Calculating Average Annual (Compound) Growth Rates
Future price = Initial price * ( 1+ i )^n
where, i = annual growth rate
and n = no. of years
So,
$ 35033 = $ 27,880 * ( 1+i)^4 ==> (1+i)^4 = $ 35,033 / $ 27, 880 = 1.26
==> 1+i = 1.26^(1/4) = 1.059 ==> i = 1.059 - 1 = 0.059
Therefore, i = annual growth rate = 0.059 = 5.9%
Answer: Annual grwoth rate is 5.9% using compound growth rate model
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