Question

The price of a cup of coffee was $2.75 yesterday. Today, the price fell to $2.40. Find the percentage decrease. Round your answer to the nearest tenth of a

percent.

Answer 1

Answer: (2.75-2.40)/(2.75) * 100 [Before rounding to the nearest tenth]

Explanation:

Formula for percentage decrease = (old-new)/(old) * 100

so substituting in, you get (2.75-2.40)/(2.75) * 100

From here, you can just plug this into a calculator (don't have on me rn)