Problem 108 of 7
Find the single-period percent change from multi-period factor 0.81 over 2 periods.
Using a hint is okay. It just tells the trainer to give you a little more review.
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take roots of multiplier.
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Factor must be positive and have an exact or intended root over the period count.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Take the periods-th root of the multi-period factor.
2. Compare the resulting multiplier to 1.
3. Convert to percent increase or decrease.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Dividing the multi-period percent by the number of periods as exact exponential reasoning.