Percentages

Question 1

How do you find percentage increase?

Answer 1

Actual profit/original amount x100
= 95000-75000/75000 x100
= 20000/75000 x100
= 27% to the nearest percent

Question 2

How do you find percentage decrease?

Answer 2

Actual decrease/original amount x100
= 125000-80000/125000 x100
= 45000/125000 x100
= 36%

Question 3

How do you reverse percentages to find an original amount?

Answer 3

Decrease:
80%=£200 (divide by 80)
1%=£2.50 (multiply by 100)
100%=£250

Increase:
120%=£2940 (divide by 120)
1%=£24.50 (multiply by 100)
100%=£2450