# What is 0.4 as a percent?

Converting decimals to a percentage can be very helpful. Let's go through the steps to change a decimal into a percentage.

Often, convert 39/100 to a percent or 9/22 to a percent, depending on the task.

## Conversion formula (equation):

0.4 = 0.4 × 100 = 40%

0.4 = 40%

## What is a decimal?

A decimal shows numbers as parts of ten. It comes after a point and represents values less than one. For example, 0.25 means twenty-five hundredths or a quarter of a whole.

## What is a percent?

A percent represents parts of a hundred. The symbol “%” shows proportions. 50% means half, and 200% means double the original value.

### Step-by-Step Process:

1. Begin with the Decimal: Start with the decimal value you wish to convert. For this tutorial, we have 0.4.
2. Recognize the Link: A decimal represents a part of 1. Similarly, a percentage shows a portion of 100.
3. Execute the Conversion: To change a decimal to a percentage, multiply by 100. Here's the math for our example: 0.4 × 100 = 40%.
4. Add the Percentage Symbol: After computation, add the percentage symbol (%) to your outcome. Thus, we get: 40%

### In Summary:

The decimal 0.4, when depicted as a percentage, is 40%. This transformation involves multiplying the decimal by 100 and appending the percentage sign.