Solution - Percentage

- 12.75

-12.75

See steps

Step-by-step explanation

1. Convert percentages into fractions or decimals

For fraction: divide -15 by 100 and remove the % sign.
$- 15 % = \frac{- 15}{100}$

For decimal: move the decimal point 2 places to the left and remove the % sign.
$- 15 % = - 0.15$

2. Multiply the decimal or fraction by the quantity that equals 100%

$100 % = 85$
$- \frac{15}{100} \cdot 85 = - 0.15 \cdot 85 = - 12.75$

-15% of 85 is -12.75

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Why learn this

"Only today- 55% off on all shoes!"
"The interest has gone up by 0.7%."
"20% tip is included in the bill."

Percentages are really useful ways to understand how numbers are related. They show up constantly in everyday life - from shopping to using the internet, important statistics and beyond - so understanding them is 100% worth the time commitment.

Terms and topics

Percentages