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Economic Statistics

Consumer Price Index/Inflation Rate

How to Figure the Inflation Rate

CPI Index Point Change:

Current CPI                            118.5
Previous Index                        113.8
Equals Index Point Change         4.7

  Percent Change:

Index Point Difference                   4.7
Divided by the Previous Index    113.8
Equals                                        0.041
Results multiplied by 100   0.041 x 100
Equals Percent Change                   4.1

Source: "Using the Consumer Price Index for Escalation"
U.S. Department of Labor
Bureau of Labor Statistics
January 1989
L 2.2
C 766/41
page 5.

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Last Updated: 11/7/07