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Income tax rates withheld from a paycheck range from 0 to 39.6 percent. The percentage taken out of a paycheck for taxes depends on the person's income, marital status and allowances claimed on that person's W-4 form, according to Washington State University.

www.reference.com/article/percentages-calculated-c4cf4def163fed0d

Percentages are calculated by finding what portion a fractional amount takes up out of 100. By comparing a fractional amount to x/100, a percentage can be found.

www.reference.com/article/formula-percentages-6a18d4919bc47cb3

The formula for finding percentages is to divide part of the whole quantity by the whole quantity and then multiply by 100 percent. A percentage change can be found by simply dividing the old quantity into the difference between the old quantity and the new quantity. Th...

www.reference.com/article/formula-percentages-a83280a08f58e0d3

To find a percentage, divide the number of times something occurred by the total number of possible occurrences and then multiply by 100. If a player made nine of 10 shots, divide nine by 10 and get 0.9. Multiply 0.9 by 100 to get 90 percent.

www.reference.com/article/can-person-calculate-percentage-40b7fcd24fa1aa5f

To calculate a percentage, simply divide one number into the other and multiply by 100. The order of division is important, and is determined by the wording of the question.

www.reference.com/article/percentage-americans-black-2500e79649984daa

As of 2013, an estimated 13.2 percent of the population in the United States is African-American. This percentage reflects those who identified themselves as a single race and does not include those who identify as having two or more races, which may include some Africa...

www.reference.com/world-view/invented-percentages-657eca4cb7048e89

No one person invented percentages. The concept developed throughout history. In Ancient Rome mathematical computation were expressed in fractions of 100. This concept later evolved into percentages.

www.reference.com/geography/percentage-earth-water-c4023e541cef794b

Approximately 71 percent of the Earth's surface is water. The oceans hold 96.5 percent of that water, and there is also water in icecaps and glaciers. The air holds water vapor, and the human body carries water as well.

www.reference.com/article/solve-percentages-b9b1d44ae62bc04d

A percentage is solved by transferring a percentage into a decimal or a fraction, or by transferring a decimal or fraction into a percentage. To transfer a percentage into a decimal, divide the percentage by 100. To transfer it into a fraction, multiply the fraction by ...

www.reference.com/world-view/can-calculate-weighted-percentages-2b96671db80151e1

To calculate a weighted percentage, first multiply each item by the percentage it has been allotted, and then add those values together. Weighted percentages help in situations where certain factors are more important than others.