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A percentage is determined by two numbers and so can't be used on its own to determine either the numerator or the denominator
If you know the numerator, then you can get the denominator by dividing the numerator by the percent (as a decimal)
So if (exactly) 25% of X equals 3, so 3/.25 = 12
Sometimes you will need to round the result:
E.g. 43% of X equals 3, so 3/0.43 = 6.98
But we know that the denominator is a whole number, so we round this to 7.
Rounding of the percentage is also important for bigger numbers, so
If 10% of X equals 12, 12/.1 = 120. But also 12/121 = 10% (to the nearest whole percent)
If, on the other hand, you have the (whole number) denominator and the percentage (rounded to n significant figures) then the lowest and highest whole number numerators can be evaluated in a spreadsheet as:
lower limit: =CEILING((proportion-0.5*POWER(0.1,n))*denominator,1)
upper limit: =FLOOR((proportion+0.5*POWER(0.1,n))*denominator,1)
where the proportion is the percentage as a decimal.
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How do you find a number when a percent of it is known?
Divide (the known part) by (the percent). The quotient is the whole unknown number.
How do you find the percent if the whole number is known?
Take the number you have out of the whole, then dived it by the whole number. Multiply the resulting number by 100 and that's your percent.Example:What percentage is 7 of 10?7 / 10= .7.7 x 100 = 707 is 70% of 10.
Find a number when a percent is known?
Divide the percent into 100 then multiply the result by the number that is that percent of the whole. For example, if 25% of your weekly wage is $65, then... 100 divided by 25 is 4. 4 times $65 = $260.
How do you find the whole from a percent?
Divide the amount given as a percent of a whole by the percent, converted to a decimal by multiplying the percent by 0.01 (exact). The value of the whole will be the quotient. In symbols, when w is the unknown whole, k is a known percent of the whole, and the percent p itself is known, w = k/(0.01)p or 100 (k/p).
How do you find percentages in whole numbers?
To find a percentage in a whole number, multiply the number by 100%, or put two zeroes and a percent sign after the number.
How do you Find a whole when the percent is known?
how do you find a number when a percent of it is known
How do you find a number when a percent of it is known?
Divide (the known part) by (the percent). The quotient is the whole unknown number.
How do you find the percent equivalent to the nearest whole percent?
You find the percentage equivalent and the round the result to the nearest whole number.
How do you find the percent if the whole number is known?
Take the number you have out of the whole, then dived it by the whole number. Multiply the resulting number by 100 and that's your percent.Example:What percentage is 7 of 10?7 / 10= .7.7 x 100 = 707 is 70% of 10.
Find a number when a percent is known?
Divide the percent into 100 then multiply the result by the number that is that percent of the whole. For example, if 25% of your weekly wage is $65, then... 100 divided by 25 is 4. 4 times $65 = $260.
How do you find the whole from a percent?
Divide the amount given as a percent of a whole by the percent, converted to a decimal by multiplying the percent by 0.01 (exact). The value of the whole will be the quotient. In symbols, when w is the unknown whole, k is a known percent of the whole, and the percent p itself is known, w = k/(0.01)p or 100 (k/p).
How do you find percentages in whole numbers?
To find a percentage in a whole number, multiply the number by 100%, or put two zeroes and a percent sign after the number.
3.4 percent of 5000?
170 Here are the steps to find the percent of a whole number: 1. Get a calculator. 2. Type in the whole number. 3. Multiply that by the percent. 4. Then click the percent and you'll see the answer.
How do you find the fractional percent of a whole number?
Divide the numerator into the denomonator.
How do you find a percent if the whole number is know?
a as a percentage of b = 100a/b
How do you find out percentage?
You take your percentage and divide it by 100 then times it by your whole number or what you are trying to find the percent of
How do find a certain percentage to a whole number?
If you want to find x percent of a number y then you need to calculate y*(x/100). It makes no difference whether y is a whole number or not.
