What is the percentage increase/decrease from 640 to 378?

Answer: The percentage change is -40.94%.

Let's see how we can calculate this percentage: what is the percentage increase/decrease from 640 to 378? Here is a very simple step-by-step guide to find out.

Step 1: We use the following formula:

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

• \(X = 640\)
• \(Y = 378\)
• Percentage change calculation = \({378-640 \over 640}\) = \({-262 \over 640}\) = \(-0.409375\)

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

\(-0.4094\) = \(-40.94 \over 100 \) = \(-40.94\%\)

\(Answer: \) The percentage change is -40.94%.

What is the percentage increase/decrease from 640 to 378? -40.94 percent.

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