What is the percentage increase/decrease from 91 to 66?

Answer: The percentage change is -27.47%.

Let's see how we can calculate this percentage: what is the percentage increase/decrease from 91 to 66? Here is a very simple step-by-step guide to find out.

Step 1: We use the following formula:

\(\text{Percentage change}\) = \({Y-X \over X} \cdot 100\%\)

• \(X = 91\)
• \(Y = 66\)
• Percentage change calculation = \({66-91 \over 91}\) = \({-25 \over 91}\) = \(-0.27472527472527\)

Step 2: A percentage is a number or ratio expressed as a fraction of 100.

\(-0.2747\) = \(-27.47 \over 100 \) = \(-27.47\%\)

\(Answer: \) The percentage change is -27.47%.

What is the percentage increase/decrease from 91 to 66? -27.47 percent.

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