What is Percent
So, what is percent?
For "percent" we use symbol "%".
"Percent" means "per hundred".
So, if you have a cake and you divide it into 100 pieces. Then 1% of the cake is 1 piece.
Now, what is `20%`? Similarly, you divide a cake into 100 pieces and take 20 pieces. In fraction notation it can be written as `20/100=1/5`. In decimal notation it is `0.2`.
Now, we can see how percent and fraction are related.
Percents and fractions are related in following way: `p%=p/100`.
Now, let's get back to the whole cake. If cake is divided into 100 pieces and you take all 100 pieces then you take `100%=100/100=1`, i.e. whole cake.
We often take some things (cake or pocket money) to be `100%` (or 1). After this we easily can calculate percent.
Now, what if we have 2 cakes and a half (in other words `2.5` cakes)?
First cake contains 100 pieces, second cake contains 100 pieces and half of cake contains 50 pieces. Total of 250 pieces.
So, it is 250 out of 100 pieces or `250%=250/100=2.5`.
Sometimes you can hear: "I want you to give 150% out there". If you did your best, that would be your whole effort. So, that would be 100% of you effort. 150% is just impossible. People say so to make you work even harder that you ever have before.