The value of a currency appreciated by 7.80% of its value last month and then depreciated by 7.80% this month. By what percent did the currency appreciate or depreciate over the 2-month period?

College Algebra (MindTap Course List)
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ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
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Chapter7: Conic Sections And Quadratic Systems
Section7.CM: Cumulative Review Exercises
Problem 51CM
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The value of a currency appreciated by 7.80% of its value last month and then depreciated by 7.80% this month. By what percent did the currency appreciate or depreciate over the 2-month period?

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