What is the percentage increase/decrease from 649 to 639?

Answer: The percentage change is -1.54%.

Let's see how we can calculate this percentage: what is the percentage increase/decrease from 649 to 639? Here is a very simple step-by-step guide to find out.

Step 1: We use the following formula:

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

• \(X = 649\)
• \(Y = 639\)
• Percentage change calculation = \({639-649 \over 649}\) = \({-10 \over 649}\) = \(-0.015408320493066\)

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

\(-0.0154\) = \(-1.54 \over 100 \) = \(-1.54\%\)

\(Answer: \) The percentage change is -1.54%.

What is the percentage increase/decrease from 649 to 639? -1.54 percent.

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