# Percentage Calculator

The percentage in mathematics is a number or ratio that represents a fraction of 100.
For example, 25% is equivalent to the decimal 0.25 or the fraction 25/100.

Please provide the percentage value and the value that the percentage will modify in the percentage calculator and get the result.

For example, the percentage is equal to 25%, and the value that the percentage will modify is 150, or what is 25 percent of 150, the result is (25 ÷ 100) × 150 = 37.5
Formula:
Step 1: Convert the percentage to a decimal: 25 ÷ 100 = 0.25
Step 2: Multiply the decimal number by the number you want to find the percentage of: 0.25 × 150 = 37.5

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## Percentage Increase and Decrease

Percentage increase and decrease calculator helps you to get the result after a number has been increased or decreased by a percentage.

### What is 1500 after a 3% increase?

For example, Tony has \$1500 in his account, after a year tony's account increased by 3%.
How much Tony have in his account?
Formula:
Step 1: 100% + 3% = 103%
Step 2: Convert 103% into a decimal: 103 ÷ 100 = 1.03
Step 3: Multiply the original number by the decimal: 1500 × 1.03 = 1545
Result is 1545 Tony has \$1545 in his account

### What is 1000 after a 2% decrease?

For example, Tony has \$1000 in his account, after a year tony's account has decreased by 2% from Taxes.
How much Tony have in his account?
Formula:
Step 1: 100% - 2% = 98%
Step 2: Convert 98% into a decimal: 98 ÷ 100 = 0.98
Step 3: Multiply the original number by the decimal: 1000 × 0.98 = 980
Result is 980
Tony has \$980 in his account

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## Reverse Percentages Calculator

This calculator helps you to find the original number, you have been given the final number, and the percentage type (increase or decrease).

### A 20% Decreaseof ____ is 150.

For example: if a shirt in a sale marked 20% off costs \$150, what is the original price of the shirt?
Simply enter the price of the shirt 150 the final number in the first box, and the percentage type whether it was increased or decreased in this example the percentage type is (decreased), and the percentage (20%) the result is the original price of this shirt (answer: \$187.5 ).

Formula:
Step 1: Find the percentage of the original number (in the example above, the shirt in a sale marked 20% off costs \$150 that is mean that 150 is 80% of the original shirt price) 100 - 20 = 80%
Step 2: Convert percent to a decimal: 80% = 80 ÷ 100 = 0.8
Step 3: Divide final number by decimal: 150 ÷ 0.8 = 187.5

### A 25% Increaseof ____ is 5500.

For example: Tony invests money in cryptocurrency. Two years later, he sells them for \$5500 at a profit of 25% of their original value. How much is the original value?
Enter the final number (5500) in the first box, the percentage type (increased), and the percentage (25%). The result is the original value (answer: \$4400 ).

Formula:
Step 1: The percentage of the original number is 100 + 25 = 125%
Step 2: Convert percent to a decimal: 125% = 125 ÷ 100 = 1.25
Step 3: Divide final number by decimal: 5500 ÷ 1.25 = 4400

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## What is the percentage increase/decrease?

The percentage change calculator helps you to find the percentage increase or decrease between two numbers.

### Percentage Decrease Calculator

For example: Tony buys 300\$ of a cryptocurrency, three weeks later his cryptocurrency price becomes 240\$, what are the percentage changes?

Formula:
Step 1: Subtract the original number from the new number: 240 − 300 = −60
Step 2: Divide the result of step one by the original number: −60 ÷ 300 = −0.2
Step 3: Multiply the result of step two by 100 to convert it to a percentage −0.2 × 100 = −20%
If the result of step three is a negative number, then it is a percentage decrease, if it is positive then it is an increase.
So Tony's cryptocurrency Decrease by 20%

### Percentage Increase Calculator

Example: Tony hold his cryptocurrency one year after he buys it for 300\$, now the price is 846\$.
How much has cryptocurrency changed in percentage for one year?

Formula:
Step 1: Subtract the original number from the new number: 846 − 300 = 546
Step 2: Divide the result of step one by the original number: 546 ÷ 300 = 1.82
Step 3: Multiply the result of step two by 100 to convert it to a percentage 1.82 × 100 = 182%
If the result of step three is a negative number, then it is a percentage decrease, if it is positive then it is an increase.
So Tony's cryptocurrency Increase by 182%

Percentage Change Calculator
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## Percentage Calculator in Common Phrases

### Y is what percent of X?

Example: 12 is what percent of 60?
Written using the formula: (12 ÷ 60) × 100 = 20%
Step 1: Decimal = 12 ÷ 60 = 0.2
Step 2: Convert the decimal to percent
Percent = 0.2 × 100 = 20%
So 12 is 20% of 60

### Y is X% Percent of what?

Example: 12 is 60% of what?
Written using the formula: Z = 12 ÷ 60%
Convert percent to decimal
60 ÷ 100 = 0.6
Z = 12 ÷ 0.6
Z = 20
So 12 is 60% of 20

Y is what percent of X?
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Y is X% Percent of what?
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