Question

The price of a cup coffee was 2.40 yesterday. Today, the price fell to 2.15 find the percentage decrease. Round the answer to the nearest tenth of percent. Please help

Thanks ❣️

Answer 1

ANSWER

The percentage decrease is 10.4%.

Step-by-step explanation

To calculate percentage decrease, use the formula,

Percentage decrease


`= (new \: price - old \: price)/(old \: price) * 100\%`

Yesterday the price of coffee was 2.40. This is the old price.

Today the price is 2.15. This is the new price.


`= (2.15 - 2.40)/(2.40) * 100\%`


`= ( - 0.25)/(2.40) * 100\%`


`= - 0. 10416667 * 100\%`


`= - 10.416667\%`

To the nearest tenth, we have:


`- 10.4\%`

Therefore the percentage decrease is 10.4%.