What is the percentage increase/decrease from 505.15 to 100?

Answer: The percentage change is -80.2%.

Let's see how we can calculate this percentage: what is the percentage increase/decrease from 505.15 to 100? Here is a very simple step-by-step guide to find out.

Step 1: We use the following formula:

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

• \(X = 505.15\)
• \(Y = 100\)
• Percentage change calculation = \({100-505.15 \over 505.15}\) = \({-405.15 \over 505.15}\) = \(-0.80203899831733\)

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

\(-0.802\) = \(-80.2 \over 100 \) = \(-80.2\%\)

\(Answer: \) The percentage change is -80.2%.

What is the percentage increase/decrease from 505.15 to 100? -80.2 percent.

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