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How do you find out what percentage a number is of another number?
question: find the percentage A is of B = (B-A)/B x 100 . You must then take the answer and subtract it from 100 to get the correct answer, which would make the formula: (B-A)/B x 100 = C, 100 - C = percentage A is of B for example, find what percentage 57 is of 90: B - A 90-57=33 /B 33/90=0.3666 x 100 0.3666 x 100 = 36.66. 100 - 36.66 = 63.33, which is the percentage that 57 is of 90
How do you do percentage?
For fractions you just divide the numerator (the top number) by the denominator (the bottom number). then take the result and multiply it by 100, and put a percentage sign behind it. For ordinary numbers you need to know what the percentage refers to - that is, what is 100% To calculate what percentage A is of B, we do the same as we did with the fractions - divide A by B and multiply by 100, so that to find out what percentage 40 is 160 we divide 40 by 160 and get 0.25 and we multiply that by 100 and 25%.
How do you calculate what percentage a number is out of another number?
To calculate that answer to "a is what percentage of b" divide a by b, then move the decimal point two places to the right. In more rigorous terms: divide a by b, then multiply by 100. But the answer is the same either way.
How do you find the percentage of a decrease between two numbers?
say the number you start out with is A, and the number it becomes is B. to find the percentage, you must subtract A-B. Then divide the answer by A and multiply by 100% to get the percentage. (A-B)/A * 100% ex. 10 is the number you start with, 4 is the second number. So A=10 and B=4 10-4=6 6/10=0.6 multiply by 100% to get the percentage 60% so the percent of decrease is 60%
What is the formula to find the Percentage of decrease?
percentage of decrease = amount of decrease divided b the original amount and then multiply.
What percentage need to get a or b in gcse?
16 or 18
How do you find out percentage between two value?
To find A as a percentage of B, calculate 100*A/B To find A as a percentage change from B, calculate 100*(A/B -1) or, equivalently, 100*(A - B)/B. B should be positive else you will need great care in interpreting the result.
What does 80 percentage?
8o percentage may = A- or B+. 8o percentage may = A- or B+.
How do you calculcate the percentage that one figure is of another figure?
A as a percentage of B: (100 x A)/B
How do you get the rate when the base and percentage is given?
The rate usually is the percentage.
Why is the percent change from a to b not equal to the percent change of the inverse -- 1 divided by a to 1 divided by b?
0
What percent of 25 is b?
To find a percentage, you first need to express the amount as a fraction. In this case, we have b out of 25. This can be rewritten as the fraction b/25. The next step is to convert from here to a percentage, which can be done by multiplying by 100. That gives us 100b/25, which can be simplified to 4b. Thus, b is 4b% of 25.
What is 8 out of 10 as a percentage is it an a or b?
It is a 'B' (80%).
How do you find out what percentage a number is of a number?
question: find the percentage A is of B = (B-A)/B x 100 . You must then take the answer and subtract it from 100 to get the correct answer, which would make the formula: (B-A)/B x 100 = C, 100 - C = percentage A is of B for example, find what percentage 57 is of 90: B - A 90-57=33 /B 33/90=0.3666 x 100 0.3666 x 100 = 36.66. 100 - 36.66 = 63.33, which is the percentage that 57 is of 90
How do you figure out percentages?
A number A, as a percentage of B, is 100*A/B
How do you find a preCENTage of a number?
To get a percentage, you need two numbers. e.g. a is equal to x percent of b. A percentage is nothing more than the ratio of two numbers multiplied by one hundred. a then is 100a/b percent of b. For example: 23 people took a test, and seven of them failed. What percentage of the people failed? The answer being 7 * 100 / 23, or approximately 30.434782 percent.
How do you find out what percentage a number is of another number?
question: find the percentage A is of B = (B-A)/B x 100 . You must then take the answer and subtract it from 100 to get the correct answer, which would make the formula: (B-A)/B x 100 = C, 100 - C = percentage A is of B for example, find what percentage 57 is of 90: B - A 90-57=33 /B 33/90=0.3666 x 100 0.3666 x 100 = 36.66. 100 - 36.66 = 63.33, which is the percentage that 57 is of 90
