Question 258
What is a percentage? 
A percentage shows you how many parts from the whole  you have. 100%  or 1 mean the complete quantity. A percentage is the top part of a fraction whose bottom part is 100. 
  For example,  there are  100 pens in a bag. if you take one  pen it is 1 %  or 1/100; if you take 50 pens it is 50% or 50/100 = 1/2 and so on. 

Finding the Percent of a Number

To determine the percent of a number do the following steps:

1.Multiply the number by the percent (e.g. 40* 20% = 800)

2.Divide the answer by 100 (Move decimal point two places to the left) (e.g. 800/100 = 8)