How to Quickly Calculate Percentages

A percentage is a way of calculating how much there is of something in relation to the whole. In mathematics, a percentage is a number or ratio that can be expressed as a fraction of 100. The word ‘percentage’ is very familiar to us as it is used regularly in the media to describe anything from changes in the interest rate, to the number of people taking holidays abroad, to the success rate of the latest medical procedures or exam results. Percentages are a useful way of making comparisons, apart from being used to calculate the many taxes that we pay such as VAT, income tax, domestic fuel tax, and insurance tax, to name but a few. Percentages are used very widely in both mathematics and everyday situations, and they are really useful for understanding relative amounts and making them meaningful.

Now ‘per cent’ means out of 100. In mathematical language, “out of” means ‘divide by’. So if you score 85% (using the symbol ‘%’ for percentage) on a test then, if there were a possible 100 marks altogether, you would have achieved 85 marks.

So, 85% = 85/100 .

Easy & quick way to calculate the percentage of a number:

To calculate the percent of a number, divide the number by whole and multiply by 100.

Percentage = (Value/Total value)×100

Example: 3/4 × 100 = 0.75 × 100 = 75%

Easy & quick way to calculate percentage amount:

P% of Number = X

where X is the required percentage amount.

If we remove the % sign, then we need to express the above formulas as;

P/100 * Number = X

Example: Calculate 20% of 500.

Let 20% of 500 = X

20/100 * 500 = X

X = 100

So, That’s all about The easy and quick way to Calculating the percentage of a number. I hopefully think this information is helpful for you.

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