## Calculator Use

Find a percent or occupational out the percentage offered numbers and also percent values. Usage percent recipe to figure out percentages and also unknowns in equations. Add or subtract a portion from a number or settle the equations.

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## How to calculate Percentages

There are plenty of formulas for portion problems. You have the right to think that the most basic as X/Y = ns x 100. The formulas listed below are every mathematical variations of this formula.

Let"s explore the three basic percentage problems. X and Y room numbers and also P is the percentage:

find P percent that X discover what percent that X is Y discover X if p percent of that is YRead on to learn much more about how to figure percentages.

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## 1. Exactly how to calculate portion of a number. Usage the portion formula: P% * X = Y

Example: What is 10% of 150?

convert the trouble to an equation using the percent formula: P% * X = Y ns is 10%, X is 150, for this reason the equation is 10% * 150 = Y transform 10% to a decimal by remove the percent sign and also dividing by 100: 10/100 = 0.10 substitute 0.10 for 10% in the equation: 10% * 150 = Y becomes 0.10 * 150 = Y perform the math: 0.10 * 150 = 15 Y = 15 therefore 10% of 150 is 15 dual check your answer with the initial question: What is 10% that 150? main point 0.10 * 150 =**15**

## 2. How to uncover what percent of X is Y. Usage the percentage formula: Y/X = P%

Example: What percent the 60 is 12?

convert the problem to one equation using the percent formula: Y/X = P% X is 60, Y is 12, for this reason the equation is 12/60 = P% execute the math: 12/60 = 0.20 Important! The result will constantly be in decimal form, not percentage form. You need to multiply the result by 100 to obtain the percentage. Convert 0.20 to a percent: 0.20 * 100 = 20% therefore 20% that 60 is 12. Twin check your answer through the initial question: What percent of 60 is 12? 12/60 = 0.20, and also multiplying by 100 to gain percentage, 0.20 * 100 =**20%**

## 3. Exactly how to find X if ns percent of the is Y. Use the percentage formula Y/P% = X

Example: 25 is 20% the what number?

transform the problem to one equation making use of the portion formula: Y/P% = X Y is 25, P% is 20, so the equation is 25/20% = X transform the portion to a decimal by splitting by 100. Converting 20% come a decimal: 20/100 = 0.20 substitute 0.20 for 20% in the equation: 25/0.20 = X execute the math: 25/0.20 = X X = 125 for this reason 25 is 20% the 125 dual check your answer through the original question: 25 is 20% that what number? 25/0.20 =**125**

### Remember: just how to convert a portion to a decimal

remove the percent sign and also divide through 100 15.6% = 15.6/100 = 0.156### Remember: exactly how to transform a decimal to a percentage

multiply by 100 and include a percent sign 0.876 = 0.876 * 100 = 87.6%## Percentage Problems

There are nine sport on the three straightforward problems entailing percentages. Check out if you can match your trouble to one of the samples below. The difficulty formats complement the input fields in the calculator above. Formulas and examples room included.

### What is p percent the X?

written as one equation: Y = P% * X The "what" is Y that we want to deal with for psychic to first convert percentage to decimal, dividing by 100 Solution: fix for Y using the percent formula**Y = P% * X**

### Example: What is 10% of 25?

Written using the portion formula:**Y = 10% * 25**very first convert portion to a decimal 10/100 = 0.1 Y = 0.1 * 25 = 2.5 therefore 10% the 25 is 2.5