Do you know how to Calculate 20 percent of Any Number Without Caculator? Today, we will going to teach you how to do it? If you are science background student you have to keep clear idea about fractions. Epecially, fraction is the fundamental part of mathmatics. To calculate 20 percent of any number without a calculator, you can use you brain. Now a days if you want to be a programmer you have know math for programming. If you want to percipate in the *Maths Olympiad *You have to know percentage formula. Generally, percentage math shortcut tricks will increase you **logical reasoning, Mathematical reasoning **ability.

## Percentage Formula

To calculate the percentage, you have to divide the value by the total value and then multiply the resultant by 100.

Percentage formula = (Value/Total value) × 100

Example: 2/5 × 100 = 0.4 × 100 = 40 per cent

## How to calculate the percentage of a number?

In order To calculate the percentage of a number, You need to use the formula such as:

P% of Number = X

where X is the required percentage.

If we remove the % sign, then we need to express the above formulas as;

P/100 * Number = X

**Example: Calculate 10% of 80.**

Let 20% of 80 = X

10/100 * 80 = X

X = 8

## 20 percent of Any Number

some simple arithmetic rules. Here’s one way to do it:

**1.20 percent of 100**

=20 percent *100

= (20/100)*100

Than (20*100)/100

= 2000/100 = 20

**2.20 percent of 1000**

20 percent *1000

= (20/100)*1000

Than (20*1000)/100

= 20000/100 = 200

Now we have: 20 percent of 1000 = 200

**3.20 percent of 10000**

20 percent *10000

= (20/100)*10000

Than (20*10000)/100

= 200000/100 = 2000

Now we have: 20 percent of 10000 = 2000

4.**20 percent of 108**

20 percent *108

= (20/100)*108

Than(20*108)/100

= 2160/100 = 21.6

Now we have: 20 percent of 108 = 21.6

5.**20 percent of 110**

20 percent *110

= (20/100)*110

Than(20*110)/100

= 2200/100 = 22

Now we have: 20 percent of 110 = 22

6.**20 percent of 12**

20 percent *12

= (20/100)*12

Than (20*12)/100

= 240/100 = 2.4

Now we have: 20 percent of 12 = 2.4

7.**20 percent of 125**

20 percent *125

= (20/100)*125

Than (20*125)/100

= 2500/100 = 25

Now we have: 20 percent of 125 = 25

8.**20 percent of 13**

20 percent *13

= (20/100)*13

Than (20*13)/100

= 260/100 = 2.6

Now we have: 20 percent of 13 = 2.6

9.**20 percent of 130**

20 percent *130

= (20/100)*130

Than (20*130)/100

= 2600/100 = 26

10**.20 percent of 1300**

20 percent *1300

= (20/100)*1300

Than (20*1300)/100

= 26000/100 = 260

Now we have: 20 percent of 1300 = 260

11.**20 percent of 14**

20 percent *14

= (20/100)*14

Than, (20*14)/100

= 280/100 = 2.8

Now we have: 20 percent of 14 = 2.8