Understanding Percentage Change
Percentage change is used to measure how much a value increases or decreases relative to its original value. It is widely used in business, finance, economics, and everyday life.
For example, percentage change helps people understand salary raises, product price discounts, stock market movements, and changes in population or economic indicators.
Percentage Increase Formula
To calculate a percentage increase, use the following formula:
Percentage Increase = ((New Value − Original Value) / Original Value) × 100
Example:
If a product price increases from $80 to $100:
((100 − 80) / 80) × 100 = 25%
The price increased by 25 percent.
Percentage Decrease Formula
To calculate a percentage decrease:
Percentage Decrease = ((Original Value − New Value) / Original Value) × 100
Example:
If a $120 product goes on sale for $90:
((120 − 90) / 120) × 100 = 25%
The price decreased by 25 percent.
Real-World Examples
Percentage change appears frequently in everyday financial situations in the United States.
- Salary increases
- Retail discounts and seasonal sales
- Stock market gains and losses
- Inflation and cost of living adjustments
Using a Percentage Calculator
Instead of performing manual calculations each time, a percentage calculator can quickly determine increases or decreases between two values.
The Roboculator Percentage Calculator allows users to calculate percentage change instantly by entering the original value and the new value.
This tool can be helpful when analyzing business performance, shopping discounts, or financial data.