an index decreases from 110 to 105. the percentage change in the index is?

Principles of Economics 2e
2nd Edition
ISBN:9781947172364
Author:Steven A. Greenlaw; David Shapiro
Publisher:Steven A. Greenlaw; David Shapiro
Chapter22: Inflation
Section: Chapter Questions
Problem 35P: With in 1 or 2 percentage points, what has the U.S. inflation rate been during the last 20 years?...
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an index decreases from 110 to 105. the percentage change in the index is?

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