# 21 increased by 40 percent

Here you will see step by step solution to calculate 21 increased by 40 percent. What is 21 increased by 40%? It is 29.4, and the increase is 8.4. Check the detailed explanation of answer given below.

## Answer: 21 increased by 40% is

= 29.4

### How to increase the number 21 by 40 percent?

With the help of given formula we can get the the percent increase value -

formula 1: Percentage increase = P% × n, P = Percent, n = Number

formula 2: Result = n + Percentage increase
Here we have, n = 21, P = 40%

#### Solution for 21 increased by 40 percent(40%) -

Given number n = 21, P = 40%

• Put the n and P values in the given formula:
• => 40% × 21
=> 40/100 × 21

• Now we need to simplify the fraction by multiply 40 with 21, then divide it by 100
• => 40 × 21/100 = 840/100 = 8.4
• Percentage Increase = 8.4
• Now we will use formula 2 to get the value of 21 increased by 40%
• = 21 + 8.4
= 29.4

Therefore, result is for 21 increased by 40% is 29.4 and increase is 8.4.

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