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An investor started building his portfolio in 1985. The initial value of this portfolio was $25,000. After a 30- year career, the value of his portfolio had increased to $425,000. What is the average percentage increase per year in his portfolio?

1 Answer

4 votes
Average percentage =(425000-25000)/(30-0)
Average percentage= 13,333.3

Use formula [f(b)-f(a)]/(b-a)
User Saeed Ur Rehman
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