Suppose I have decimal

0.5

To continue into percentage

We just multiplying by 100%

0.5 = 0.5 × 100%

= 5/10 × 100%

= 5 × 10%

= 50%

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Note:-
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The concept behind this is

Percentage is 1/100

That is 1/100 = %

So, to convert any number into percentage,

We multiply by 100/100

**
Like here
**

0.5 = 0.5 × 100/100

= 0.5 × 100
**
%
**

= 5/10 × 100%

= 5 × 10%

= 50%

Let’s do some examples

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**
Convert 1.125 into percent
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1.125 = 1.125 × 100%

= 1125/1000 × 100%

= 1125/10 %

= 112.5%

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**
Convert 0.66 into percent
**

0.66 = 0.66 × 100%

= 66/100 × 100%

= 66/1 %

= 66%