What is the percentage increase/decrease from 2030 to 1220?

Answer: The percentage change is -39.9%.

Let's see how we can calculate this percentage: what is the percentage increase/decrease from 2030 to 1220? Here is a very simple step-by-step guide to find out.

Step 1: We use the following formula:

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

• \(X = 2030\)
• \(Y = 1220\)
• Percentage change calculation = \({1220-2030 \over 2030}\) = \({-810 \over 2030}\) = \(-0.39901477832512\)

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

\(-0.399\) = \(-39.9 \over 100 \) = \(-39.9\%\)

\(Answer: \) The percentage change is -39.9%.

What is the percentage increase/decrease from 2030 to 1220? -39.9 percent.

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