Calculations

Question 1

calculating a percentage?

Answer 1

divide given number by total number, multiply by 100

Question 2

converting a percentage into a number?

Answer 2

divide the percentage by 100, multiple by total number

Question 3

calculating a percentage change?

Answer 3

1. final value - starting value = difference
2. difference ÷ starting value
3. times 100

Question 4

Finding an average?

Answer 4

1. add all values together

2. divide this number by how many value there are