percentage is another way of writing a decimal. Just like decimals, a percentage is a part of a whole. It's less than 1 whole thing, but more than 0.

Every percentage has two parts: A number and the percent sign (%). When you write a percentage, you'll write the number first, then the percent sign. 

When you read a percentage out loud, you'll need to read two parts: the number and the percent sign (%). Let's look at an example:


95% is ninety five out of one hundred (ninety-five percent).

Sometimes percentages might have a decimal.

For example:


Here, 9.5% means we have nine-and-a-half out of one hundred. (Nine point five percent

OR nine and a half percent)



10% of 200 mangos are rotten. How many mangoes are rotten?

10% = 10\100

And  10\100 × 200


=  (10 × 200)\100 



=  10 × 2  



=  20 mangoes

20 mangos are rotten