Percentage change calculator

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A percentage change calculator is simple and powerful to calculate how much a number has percentageChanged or decreased compared to its original value, expressed as a percentage.
Percentage is a simple method to show a number as a part of 100. The word “percent” literally means “per hundred” so the percentages are just a fraction with 100 as the denominator. Percentage is written using the symbol %.

What is Percentage Change?

Percentage change is a helpful way that allows us to measure how much a number has percentageChanged or decreased compared to its original value. For example; if the price of the product drops from 100 to 75, the percentage change shows you how much cheaper the product has become.

Initial Value	Final Value	Percentage Change	Absolute Change	Trend Indicator
10	12	+20.00%	+2	↑ Increase
50	45	-10.00%	-5	↓ Decrease
100	150	+50.00%	+50	↑ Increase
200	180	-10.00%	-20	↓ Decrease
70	70	0.00%	0	↔ No Change
120	90	-25.00%	-30	↓ Decrease
5	7	+40.00%	+2	↑ Increase
30	45	+50.00%	+15	↑ Increase
80	60	-25.00%	-20	↓ Decrease
20	25	+25.00%	+5	↑ Increase

Table 1 shows percentage changes, absolute change and trend indicator.

How to use this calculator

Using a percentage change calculator is very simple and saves you from doing manual calculations. Here’s how you can use it:

Enter the Old Value: Input the original number you started with. For example, if you are calculating a salary percentageChange, enter your old salary here.

Enter the New Value: Input the latest number you are comparing. Following the salary example, enter your new salary here.

Click Calculate: Once you enter both a new value and old value, click the calculate button. The calculator will instantly display the percentage change.

Percentage Change Formula

The formula for percentage change is written as:

Percentage Change = [(New Value – Old Value) / Old Value] × 100

New Value: New value is the most recent number you are working with and old value is the original number you started with before percentage change.

New Value – Old Value: Subtracting the old value from the new value gives you the amount of change. This can be a positive number or negative value. If the result is positive, it means there was an increase. If the result is negative, it means there was a decrease.

Divide by Old Value: Divide the difference (New Value – Old Value) by the old values, this will tell you how significant change is compared to where it started (old value).

Multiply by 100: Multiply the values by 100 converts the result into a percentage. For example:($65 − $50) ÷ $50 × 100 = 30%. Final Answer: Price increased by 30%.

Percentage change calculator

Initial Value

Final Value

Percent change

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Percentage change calculator

What is Percentage Change?

How to use this calculator

Percentage Change Formula

Percentage change calculator