# Shortcut to find percentage of a number within seconds

Shortcut to find percentage of a number is one of the coolest trick which makes maths fun. With this trick you can mentally find the percentage of any number within seconds.

Let us understand a simple concept on percentages here

100% of a number will be the number itself

ex:100% of 360 will be 360

50% of a number will be half of the number

ex:50% of 360 will be 360/2=180

25% of a number will be quarter of the number or half of 50% of the number

ex:25% of 360 will be 360/4 or 180/2=90

10% of a number can be found by shifting the decimal point by 1 place to the left.

ex:10% of 360 will be 36.0

5% of the number is half of 10% of a number

ex:5% of 360 will be 36/2=18

15% of the number will be the sum of 10% and 5% of a number

ex:15% of 360 will be (10% of 360)36+(5% of 360)18=54

1% of a number can be found by moving the decimal point by 2 places to the left.

ex:1% of 360 will be 3.60

Now that we know the concept let us see how we can apply this trick in the below examples

## Examples to apply shortcut to find percentage of a number

**Example 1:** 11% of 550 is?

**Step 1: **Split the number into 2 numbers that we can easily find the percentage of.

We can split 11% into 10% and 1%

**Step 2: **First we find 10% of 550 by shifting the decimal point to the left by 1 place.

We get,

10% of 550=55.0

**Step 3:** Now we need to find 1% of 550 by shifting the decimal point to the left by 2 places.

We get,

1% of 550=5.50

**Step 4:**Adding both the results

we get 10%+1%=55.0+5.50=60.50

**Ans 11% of 550=60.50**

**Example 2:**21% of 250 is?

**Step 1: **21% can be split into 10%+10%+1%

**Step 2:** First we find 10% of 250 by shifting the decimal point to the left by one place

we get,

10% of 250=25.0

**Step 3: **Another 10% of 250 we get

10% of 250=25.0

**Step 4:**Now we need to find 1% of 250 by shifting the decimal point to the left by 2 places.

We get,

1% of 250=2.50

**Step 5:**Adding all the results we get,

10%+10%+1%=25+25+2.50=52.50

**Ans 21% of 250=52.50**

**Example 3:** 61% of 754 is?

**Step 1:**61% can be split into 50%+10%+1%

**Step 2: **First we find 50% of 754 which is half of the number

we get, 50% of 250=377

**Step 3: **First we find 10% of 754 by shifting the decimal point to the left by one place

we get, 10% of 754=75.4

**Step 4:**Now we need to find 1% of 754 by shifting the decimal point to the left by 2 places.

We get, 1% of 754=7.54

**Step 5:**Adding all the results we get,

50%+10%+1%= 377+75.4+7.54=459.94

**Ans 61% of 754=459.94**

**Example 4:** 98% of 850 is?

**Step 1: **98% can be split into 100% – 2%

**Step 2: **We know that 100% of 850 which is 850.

**Step 3: **Now we find 1% of 850 by shifting the decimal point to the left by 2 places

we get, 1% of 850= 8.5

**Step 4:**Now we find 2% of a number,

1% of 850 + 1% of 850=8.5 + 8.5

we get, 2% of 850= 17

**Step 5:**a Subtracting the results we get,

100%- 2%= 850-17=833

**Ans 98% of 850=833**

**Example 5:** 95% of 620 is?

**Step 1: **95% can be split into 100% – 5%

**Step 2: **We know that 100% of 620 which is 620.

**Step 3: **Now we find 10% of 620 by shifting the decimal point to the left by 1 place

we get, 10% of 620= 62

**Step 4:**Now we find 5% of 620 which is half of 10%

62/2= 31

we get, 5% of 62= 31

**Step 5:**a Subtracting the results we get,

100%- 5%= 620-31=589

**Ans 95% of 620=589**

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