What is the percentage increase/decrease from 90 to 31.6?

Answer: The percentage change is -64.89%.

Let's see how we can calculate this percentage: what is the percentage increase/decrease from 90 to 31.6? Here is a very simple step-by-step guide to find out.

Step 1: We use the following formula:

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

• \(X = 90\)
• \(Y = 31.6\)
• Percentage change calculation = \({31.6-90 \over 90}\) = \({-58.4 \over 90}\) = \(-0.64888888888889\)

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

\(-0.6489\) = \(-64.89 \over 100 \) = \(-64.89\%\)

\(Answer: \) The percentage change is -64.89%.

What is the percentage increase/decrease from 90 to 31.6? -64.89 percent.

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