What is the % increase/decrease
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What is the percentage increase/decrease from 81 to 405?
Answer: The percentage change is 400%.
Let's see how we can calculate this percentage: what is the percentage increase/decrease from 81 to 405? Here is a very simple step-by-step guide to find out.
Step 1: We use the following formula:
\(\text{Percentage change}\) = \({Y-X \over X} \cdot 100\%\)
• \(X = 81\)
• \(Y = 405\)
• Percentage change calculation = \({405-81 \over 81}\) = \({324 \over 81}\) = \(4\)
• \(X = 81\)
• \(Y = 405\)
• Percentage change calculation = \({405-81 \over 81}\) = \({324 \over 81}\) = \(4\)
Step 2: A percentage is a number or ratio expressed as a fraction of 100.
\(4\) = \(400 \over 100 \) = \(400\%\)
\(Answer: \) The percentage change is 400%.
\(Answer: \) The percentage change is 400%.
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