What is the percentage increase/decrease from 40 to 81?

Answer: The percentage change is 102.5%.

Let's see how we can calculate this percentage: what is the percentage increase/decrease from 40 to 81? Here is a very simple step-by-step guide to find out.

Step 1: We use the following formula:

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

• \(X = 40\)
• \(Y = 81\)
• Percentage change calculation = \({81-40 \over 40}\) = \({41 \over 40}\) = \(1.025\)

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

\(1.025\) = \(102.5 \over 100 \) = \(102.5\%\)

\(Answer: \) The percentage change is 102.5%.

What is the percentage increase/decrease from 40 to 81? 102.5 percent.

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