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Learn
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A percentage is a certain proportion of a particular value. It always relies on 100% as the "complete" value and 0% as the "non-existent" value. Therefore, 200% is twice the complete value. To explain this, an alloy may be 25% steel and 75% copper. Therefore there is 3 times as much copper as there is steel. If an employee had a 200% increase in salary, his salary would be 3 times as big. This is because he would have twice the complete value on top of his original salary. He would also be very happy!
To calculate the percentage of any quantity we divide the percentage by 100 to obtain its decimal value, and then multiply this by the whole quantity. Or, if we are given numbers and asked to calculate what percentage one number is of another number, we divide one number by the other number in the equation and then multiply the result by 100 to convert it into a percentage.
What is 56% of 956?
56 divided by 100 = 0.56
0.56 X 956 = 535.36. Brilliant!
Calculate what percentage 12 is of 298.
12 divided by 298 = 0.0402684.
0.0402684 X 100 = 4.02684 = 4.03 to 2 decimal places.
...........................................
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