What is the percentage increase/decrease from 9901 to 1988?

Answer: The percentage change is -79.92%.

Let's see how we can calculate this percentage: what is the percentage increase/decrease from 9901 to 1988? Here is a very simple step-by-step guide to find out.

Step 1: We use the following formula:

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

• \(X = 9901\)
• \(Y = 1988\)
• Percentage change calculation = \({1988-9901 \over 9901}\) = \({-7913 \over 9901}\) = \(-0.7992122007878\)

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

\(-0.7992\) = \(-79.92 \over 100 \) = \(-79.92\%\)

\(Answer: \) The percentage change is -79.92%.

What is the percentage increase/decrease from 9901 to 1988? -79.92 percent.

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