Maria bought a used chair for x dollars. This year the value of the chair was 0.66x. Which expression also describes the change in value of the chair?

a) 0.34% decrease b) 0.66% decrease

c) 34% decrease d) 66% decrease

For this case we have that the change in the value of the chair is given by:

x-0.66x = 0.34x

The percentage of decrease is given by:

(0.34) * (100) = 34%

Therefore, the chair had a decrease in the cost of 34%

Answer:

c) 34% decrease