How Do You Find 10 Percent of a Number OR

How Do You Find 10 Percent of a Number OR

How Do You Find 10 Percent of a Number

Generally, the way to figure out any percentage is to multiply the number of items in question, or ​X​, by the ​decimal​ form of the percent. To figure out the decimal form of a percent, simply move the decimal two places to the left. For example, the decimal form of 10 percent is 0.1. Then, to calculate what 10 percent of is, say, 250 students, simply multiply the number of students by 0.1.


To calculate a percentage greater than 100 percent, simply move the decimal of the percent ​two spaces​ to the left and use the answer to multiply the number in question. You can do this to figure out what is 350 percent of 20. Moving the decimal of the percent two spaces to the left gives you 3.5. Multiplying 20 by 3.5 then gives you the answer, which is 70.

The percentage increase calculator above computes an increase or decrease of a specific percentage of the input number. It basically involves converting a percent into its decimal equivalent, and either subtracting (decrease) or adding (increase) the decimal equivalent from and to 1, respectively. Multiplying the original number by this value will result in either an increase or decrease of the number by the given percent. Refer to the example below for clarification. (Source: www.calculator.net)


Find Percent of Two numbers example: You need to find out what percent is 7 out of 300. Using online form below, enter 7 in the first field and 300 in the second field. Answer: 2.33%. Solution: First divide low number by high: 7/300 = 0.023 Second: multiply result by 100. 0.023*100 = 2.33% Answer: 2.33%

As your maths skills develop, you can begin to see other ways of arriving at the same answer. The laptop example above is quite straightforward and with practise, you can use your mental maths skills to think about this problem in a different way to make it easier. In this case, you are trying to find 20%, so instead of finding 1% and then multiplying it by 20, you can find 10% and then simply double it. We know that 10% is the same as 1/10th and we can divide a number by 10 by moving the decimal place one place to left (removing a zero from 500). Therefore 10% of £500 is £50 and 20% is £100. (Source: www.skillsyouneed.com)



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