Question

The price of a cup of coffee was $2.35 yesterday. Today, the price fell to $2.10. Find the percentage decrease. Round your answer to the nearest tenth of a percent.

Answer 1

10.6% decrease

Explanation:

The percentage change in a quantity is computed using ...

percentage change = ((new value)/(old value) -1) × 100%

= (2.10/2.35 -1) × 100%

= (0.8936 -1) × 100%

= -.1064 × 100%

= -10.64%

The percentage decrease was about 10.6%.