Question

Price of a book decreased from $100 to $80. Find the percentage of decrease.

Answer 1

Answer:

20

Step-by-step explanation:

100-80=20

20/100*100=20

Answer 2

The percentage of decreasing = 20%

Step-by-step explanation:

Actual price of the book = $100

After decreasing the price, the price = $80

Decreasing value = $100 - $80 = $20

Percentage = $\frac{20}{100}$ X 100

= 20%