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## How do you do percentages in JavaScript?

JavaScript: Calculate the percentage of a number

1. Sample Solution:-
2. HTML Code:
3. JavaScript Code: function percentage(num, per) { return (num/100)*per; } console.log(percentage(1000, 47.12));
4. Flowchart:
5. Live Demo:
6. Improve this sample solution and post your code through Disqus.

## What is the formula of calculating percentage?

We call the first number (2) a numerator and the second number (5) a denominator because this is a fraction. To calculate the percentage, multiply this fraction by 100 and add a percent sign. 100 * numerator / denominator = percentage . In our example it’s 100 * 2/5 = 100 * 0.4 = 40 .

## What is the formula for calculating?

1. How to calculate percentage of a number. Use the percentage formula: P% * X = Y

1. Convert the problem to an equation using the percentage formula: P% * X = Y.
2. P is 10%, X is 150, so the equation is 10% * 150 = Y.
3. Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.

## How do you find the percentage decrease between two numbers?

Calculate Percentage Decrease: First, work out the difference (decrease) between the two numbers you are comparing. Next, divide the decrease by the original number and multiply the answer by 100.

## How do I find the percentage of one number to another?

Learning how to calculate the percentage of one number vs. another number is easy. If you want to know what percent A is of B, you simple divide A by B, then take that number and move the decimal place two spaces to the right. That’s your percentage!

## What is 60 out of 100 as a percentage?

Therefore the fraction 60/100 as a percentage is 60%.

## What is 30 out of 100 as a percentage?

Therefore the fraction 30/100 as a percentage is 30%.

## What is 70 out of 100 as a percentage?

Therefore the fraction 70/100 as a percentage is 70%.

## What is 60 out of 80 as a percentage?

Percentage Calculator: 60 is what percent of 80? = 75.