How to Calculate Percentages in an easy way

Although there are several ways, obtaining the percentage of a number is a very simple exercise. How to be sure of doing it correctly.

The percentage is a mathematical symbol that represents a given quantity as a fraction of 100 equal parts. It is used to establish relationships between two quantities and is established by placing the symbol “%,” which must be written after the number to which it refers, leaving a space between them. Calculating a percentage is simple, and there are even several ways.

Formula to get a percentage

To determine the percentage of a number, the following basic steps must be followed:

1 – Multiply the number by the percentage. For example, if I want to know 32% of 517, I must multiply both figures (Ex: 32 x 517 = 16544).

2 – Then, you have to divide the result by 100. It is done simply by moving the decimal point two places to the left (Ex: 16544/100 = 165.44).

3 – It is rounded to the desired precision (Ex: 165.44 rounded to the nearest whole number, 165). That is, 32% of 517 is 165.

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You can also perform the percentage calculation in these two other ways:

32/100 x 517 = 165.44

517/100 x 32 = 165.44

How to get the percentage in Excel

If you worked on an Excel spreadsheet with data, we could establish the automatic calculation to get a percentage on different figures. For example, if a savings of 15% had to be applied to four different expenses, and you want to know how much that percentage represents, the following steps should be followed:

1 – Establish in a column, in this case B, for the different expenses.

2 – Choose a second column, C, to indicate the percentage of savings we want to achieve, in this case 15%.

3 – In the third column we are going to write the formula, which is: = B2 * (1-C2)

In this formula, 1 is equivalent to 100%. The values ​​in parentheses are calculated first, so the value of C2 is subtracted from 1 to give us 85%. The result is multiplied by B2 to obtain a result of 7253.9 for expense 1. That would be the expense to be reached with the 15% savings sought.

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To copy the formula from cell D2 down, double-click on the box in the lower right corner of cell D2. Results are returned to all other cells without copying and pasting the formula again.

How to get a percentage with a calculator

For example, if you want to get 20% of 5684, you must first write that amount: 5684.

Then it is multiplied by 20, which in this case is the percentage that needs to be calculated. And then the% key is pressed. This function returns the result directly. In this case, 1136.8 is 20% of 5684.

You can also use the Percent (%) function of the Combined Addition or Subtraction calculator to directly calculate increases or discounts.

First, the number is written (in this case, 4456), then it is added by the percentage (15), and the% key is pressed. Their many calculators indicate the partial figure of the 15% increase, and when pressing the equal (, =), they give the result with the increment included (5124,4). Others give the final result directly. The same goes for subtraction.

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Percentage exercises

One of the most frequent exercises is when we must add the Value Added Tax (VAT) to a product or service because initially, the amount is disaggregated. VAT for the final consumer is 21%.

So, if you have to pay a service of $ 3966 + VAT, you have to calculate how much is 21% of 3966.

According to the different manual calculations, the most practical way to calculate the percentage would be:

3966/100 x 21 = 832.86

If it is done with a calculator, you can directly write the division’s result by running the decimal two places to the left: 39.66, then a single step is done: 39.66 x 21.

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