# Percent change Calculator

Enter the value that you want to calculate percent change..

## Percent Change Calculator

Percent change represents the degree of change over time, indicating growth or decay.

#### Key Formula

\[ \text{Percent Change} = \left( \frac{\text{Final Value} - \text{Initial Value}}{\text{Initial Value}} \right) \times 100\% \]

#### How to Use the Percent Change Calculator

Input initial and final values to compute the percent change automatically.

#### Applications

Used in finance, medicine, business, and academic research for analyzing data changes.

#### Frequently Asked Questions

**How Do You Calculate the Percent Change?**
Subtract the initial value from the final value, divide by the initial value, and multiply by 100.

**What is the Percent Change from 4/5 to 3/5?**
\( \left( \frac{3/5 - 4/5}{4/5} \right) \times 100\% = -25\% \) (a decrease).

**Percent Change from 36 to 99?**
\( \left( \frac{99 - 36}{36} \right) \times 100\% \) (an increase).

**What is 20% out of 45?**
20% of 45 is calculated as \( 0.20 \times 45 = 9 \).

**Why Do We Calculate Percentage Change?**
To understand the relative change between two values over time.

**Percentage Change when 25 is Increased to 45?**
\( \left( \frac{45 - 25}{25} \right) \times 100\% = 80\% \) increase.

**What Percentage is 3 of 5?**
\( \frac{3}{5} \times 100\% = 60\% \).

**Percent Change from 4 to 5?**
\( \left( \frac{5 - 4}{4} \right) \times 100\% = 25\% \) increase.

**Percent Change from 64 to 80?**
\( \left( \frac{80 - 64}{64} \right) \times 100\% \) (an increase).

**Percentage Change from 80 to 100?**
\( \left( \frac{100 - 80}{80} \right) \times 100\% \) (an increase).

**Percent Change from 70 to 98?**
\( \left( \frac{98 - 70}{70} \right) \times 100\% \) (an increase).

**What Percent of 120 is 30 with Solution?**
\( \frac{30}{120} \times 100\% = 25\% \).

**What is 20 of 80 with Solution?**
20% of 80 is calculated as \( 0.20 \times 80 = 16 \).

**What Number is 15 of 60 Show Work?**
15% of 60 is \( 0.15 \times 60 = 9 \).

#### Conclusion

Our Percent Change Calculator is essential for understanding the implications of numerical value changes.