Solution for Problem 4.4.1

A $5,000 stock investment in 1992 was worth $32,500 in 1998. 
Find the average annual growth rate of the stock.

Solve

            Step

Annual Growth Rate
 Identify each part
 

P = 32,500

current amount = 32,500
Po= 5,000
initial amount = 5,000
t = 6
t = 1998 - 1992 = 6

Annual Growth Rate


Interpret Þ
The investment earn about 32% a year for 6 years.

    Calculator Help
Find your ln key.  (Natural log)
HINT: use these key strokes
1 ÷ 6 × ln (6.5) [enter or =]
Some calculators do not require the parentheses