What is the % increase/decrease
from to ?
from to ?
Rounding
What is the percentage increase/decrease from 20 to 15.8?
Answer: The percentage change is -21%.
Let's see how we can calculate this percentage: what is the percentage increase/decrease from 20 to 15.8? Here is a very simple step-by-step guide to find out.
Step 1: We use the following formula:
\(\text{Percentage change}\) = \({Y-X \over X} \cdot 100\%\)
• \(X = 20\)
• \(Y = 15.8\)
• Percentage change calculation = \({15.8-20 \over 20}\) = \({-4.2 \over 20}\) = \(-0.21\)
• \(X = 20\)
• \(Y = 15.8\)
• Percentage change calculation = \({15.8-20 \over 20}\) = \({-4.2 \over 20}\) = \(-0.21\)
Step 2: A percentage is a number or ratio expressed as a fraction of 100.
\(-0.21\) = \(-21 \over 100 \) = \(-21\%\)
\(Answer: \) The percentage change is -21%.
\(Answer: \) The percentage change is -21%.
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