Answer:
There are three main ways in which percentages are frequently used: to enable data with different sample sizes or totals to be compared; to quantify the amount of change over time; to express an increase or reduction relative to initial size.
Say you have 20,000 people in a town. 2000 were Christians (like me). Show the 2000 Christians as a percentage of the 20,000 people.
2000/20,000= 0.1
=>0.1*100=10.
Answer is 10%.
