Work out the percentage change to 2 decimal places when a price of £189 is decreased to £150.

Mathematics

1 answer:

yulyashka [42]3 years ago

4 0

Answer:

The percentage change is -21%

Step-by-step explanation:

The percentage change can be expressed by the formula;

(new price -old price)/old price * 100%

New price = £150

old price = £189

Inputing these values in the formula, we have;

(150-189)/189 * 100%

-39/189 * 100%

= -20.63% and that is approximately -21%

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Answer:

Answer is gicen in the image attached.

Step-by-step explanation:

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For more help check Khan academy video

https://www.khanacademy.org/math/statistics-probability/displaying-describing-data/sample-standard-deviation/v/sample-standard-deviation-and-bias