# 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.

You can try different values to learn more about the conversion process.

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%**

## Solution:

**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:

**Begin with the Decimal:**Start with the decimal value you wish to convert. For this tutorial, we have**0.4**.**Recognize the Link:**A decimal represents a part of**1**. Similarly, a percentage shows a portion of**100**.**Execute the Conversion:**To change a decimal to a percentage, multiply by**100**. Here's the math for our example:**0.4 × 100 = 40%**.**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.