Question

Jenny buys a cd for £16.50,six months later she sells the cd for £13.20 . what is the percentage decrease in value for the cd?

Answer 1

The CD decreased in value by 20%.

To calculate the percentage decrease in value, you can use the formula:

Percentage Decrease=( Original Value−Final Value/Original Value )×100

In this case:

Original Value (the price Jenny bought the CD for) = £16.50

Final Value (the price Jenny sold the CD for) = £13.20

Plug these values into the formula:

Percentage Decrease=( 16.50−13.20/16.50​ )×100

Percentage Decrease=( 3.30/16.50 )×100

Percentage Decrease=0.2×100

Percentage Decrease=20%

Therefore, the CD decreased in value by 20%.