Increase & Decrease Calculator
Calculate percentage change instantly ⥠100% free, fast and trusted đ Start computing now đ
Result:
Calculate percentage change instantly ⥠100% free, fast and trusted đ Start computing now đ
An Increase and Decrease Calculator is a practical mathematical tool used to calculate percentage increases or decreases between two values. It helps determine how much a number has grown or reduced compared to its original value. This type of calculation is commonly used in finance, retail pricing, academic grading, salary adjustments, and performance analysis.
Instead of manually applying percentage formulas and risking errors, this calculator performs the computation instantly and accurately. By entering the original value and the new value, users can quickly determine the exact percentage change. The result clearly indicates whether the change represents an increase or a decrease.
Whether you are analyzing profit growth, discount rates, price changes, or statistical variations, the Increase and Decrease Calculator provides reliable results in seconds.
The calculator is based on a standard percentage change formula. The key concept is measuring the difference between two numbers relative to the original value.
The formula for percentage change is:
Percentage Change = (New Value â Original Value) Ãˇ Original Value à 100
Step 1: Enter the original value.
Step 2: Enter the new value.
Step 3: The calculator subtracts the original value from the new value to determine the difference.
Step 4: It divides the difference by the original value.
Step 5: The result is multiplied by 100 to convert it into a percentage.
If the result is positive, it indicates a percentage increase. If the result is negative, it indicates a percentage decrease.
This structured approach ensures clarity and precision in every calculation.
Consider a product that originally costs 100 and increases to 120. Using the formula:
(120 â 100) Ãˇ 100 à 100 = 20 percent increase.
Now consider a price reduction from 200 to 150:
(150 â 200) Ãˇ 200 à 100 = â25 percent.
The negative sign indicates a 25 percent decrease.
In academic grading, if a student improves from 70 to 84:
(84 â 70) Ãˇ 70 à 100 = 20 percent improvement.
These real-life examples demonstrate how the calculator simplifies everyday percentage comparisons.
In business and finance, companies analyze revenue growth or loss using percentage change calculations. Investors evaluate stock performance based on price fluctuations.
Retail businesses calculate discounts and price increases to adjust product pricing strategies.
In salary negotiations, percentage change helps employees understand wage adjustments.
Economists use percentage increase and decrease formulas to measure inflation, economic growth, and market trends.
Students apply percentage change calculations in mathematics assignments and competitive exams.
The calculator provides a reliable way to perform these calculations quickly and accurately.
What is the difference between percentage increase and percentage decrease?
A percentage increase occurs when the new value is higher than the original. A percentage decrease occurs when the new value is lower.
Can the calculator handle decimal values?
Yes. It supports both whole numbers and decimal values for precise results.
Why divide by the original value?
Dividing by the original value measures the relative change compared to the starting point.
Can it calculate negative results?
Yes. A negative percentage indicates a decrease.
Is this Increase and Decrease Calculator free to use?
Yes. The calculator provides instant and accurate percentage change results without any cost or registration.