Question

the price of a notebook has dropped to $3.10 today. yesterday's price was $3.60 . find the percentage decrease. round your answer to the nearest tenth of a percent.

Answer 1

Yesterday = $3.60
Today = $3.10

% Decrease = ((3.60 - 3.10) / 3.60) * 100%

= (0.50/3.60) * 100%

≈ 0.1389* 100%

≈ 13.89 %

≈ 13.9 % to the nearest tenth.

Answer 2

-13.9 %

Explanation:

Given,

The price of notebook yesterday or original price = $ 3.60,

Today, the price of the notebook or new price = $ 3.10,

Hence, the percentage decrease =
`\frac{\text{New price - Original price}}{\text{Original price}}* 100`

`=(3.10-3.60)/(3.60)* 100`

`=-(50)/(3.60)`

`=-13.8889\%`

`\approx -13.9\%`