Percent Change Math Example 4

Follow the full solution, then compare it with the other examples linked below.

Example 4

easy
A shirt's price increases from \25to to \3030. What is the percent increase?

Solution

  1. 1
    Change: 30βˆ’25=530 - 25 = 5.
  2. 2
    Percent change: 525Γ—100%=20%\frac{5}{25} \times 100\% = 20\%.

Answer

20%Β increase20\% \text{ increase}
Divide the absolute change by the original price and multiply by 100.

About Percent Change

Percent change measures how much a quantity has increased or decreased relative to its original value, calculated as newβˆ’originaloriginalΓ—100%\frac{\text{new} - \text{original}}{\text{original}} \times 100\%.

Learn more about Percent Change β†’

More Percent Change Examples

Example 1 easy

A jacket originally costs [formula]60[formula][formula]. What is the percent decrease?

Example 2 medium

A town's population grew from [formula] to [formula]. What is the percent increase?

Example 3 hard

A stock price rises by [formula] one year and falls by [formula] the next year. If it started at [fo

Example 5 medium

After a [formula] discount, a laptop costs [formula]680$. What was the original price?

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