## Calculator Use

Find a percentage or work-related out the percentage provided numbers and percent values. Usage percent formulas to figure out percentages and unknowns in equations. Add or subtract a portion from a number or deal with the equations.

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## How to calculation Percentages

There are numerous formulas for percentage problems. You can think that the most basic as X/Y = p x 100. The formulas below are every mathematical sport of this formula.

Let"s check out the three basic percentage problems. X and Y are numbers and also P is the percentage:

uncover P percent that X discover what percent of X is Y find X if p percent of the is YRead on come learn more about just how to number percentages.

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## 1. Just how to calculate percentage of a number. Use the percent formula: P% * X = Y

Example: What is 10% that 150?

convert the difficulty to an equation making use of the percent formula: P% * X = Y ns is 10%, X is 150, so the equation is 10% * 150 = Y convert 10% to a decimal by removing the percent sign and also dividing by 100: 10/100 = 0.10 instead of 0.10 because that 10% in the equation: 10% * 150 = Y i do not care 0.10 * 150 = Y carry out the math: 0.10 * 150 = 15 Y = 15 for this reason 10% of 150 is 15 twin check your answer with the original question: What is 10% the 150? main point 0.10 * 150 =**15**

## 2. Exactly how to find what percent the X is Y. Use the percentage formula: Y/X = P%

Example: What percent the 60 is 12?

convert the problem to an equation utilizing the percent formula: Y/X = P% X is 60, Y is 12, so the equation is 12/60 = P% perform the math: 12/60 = 0.20 Important! The an outcome will always be in decimal form, not percentage form. You must multiply the an outcome by 100 to get the percentage. Converting 0.20 come a percent: 0.20 * 100 = 20% for this reason 20% of 60 is 12. Dual check your answer through the original question: What percent of 60 is 12? 12/60 = 0.20, and multiplying by 100 to acquire percentage, 0.20 * 100 =**20%**

## 3. Just how to find X if p percent of that is Y. Usage the portion formula Y/P% = X

Example: 25 is 20% that what number?

transform the difficulty to one equation utilizing the percentage formula: Y/P% = X Y is 25, P% is 20, so the equation is 25/20% = X convert the percent 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 do 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% of what number? 25/0.20 =**125**

### Remember: exactly how to convert a percent to a decimal

eliminate the percentage sign and divide by 100 15.6% = 15.6/100 = 0.156### Remember: just how to transform a decimal come a percentage

main point by 100 and include a percentage sign 0.876 = 0.876 * 100 = 87.6%## Percentage Problems

There are nine variations on the three an easy problems including percentages. View if friend can complement your problem to among the samples below. The trouble formats complement the input areas in the calculator above. Formulas and also examples space included.

### What is ns percent of X?

written as an equation: Y = P% * X The "what" is Y that we desire to solve for mental to an initial convert percent to decimal, splitting by 100 Solution: resolve for Y using the portion formula**Y = P% * X**

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

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