What is the percentage increase/decrease from 809 to 409?

Answer: The percentage change is -49.44%.

Let's see how we can calculate this percentage: what is the percentage increase/decrease from 809 to 409? Here is a very simple step-by-step guide to find out.

Step 1: We use the following formula:

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

• \(X = 809\)
• \(Y = 409\)
• Percentage change calculation = \({409-809 \over 809}\) = \({-400 \over 809}\) = \(-0.49443757725587\)

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

\(-0.4944\) = \(-49.44 \over 100 \) = \(-49.44\%\)

\(Answer: \) The percentage change is -49.44%.

What is the percentage increase/decrease from 809 to 409? -49.44 percent.

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