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Solution - Percentage

142.59

142.59

See steps

Step-by-step explanation

1. Convert percentages into fractions or decimals

For fraction: divide 21 by 100 and remove the % sign.
$21 % = \frac{21}{100}$

For decimal: move the decimal point 2 places to the left and remove the % sign.
$21 % = 0.21$

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

$100 % = 679$
$\frac{21}{100} \cdot 679 = 0.21 \cdot 679 = 142.59$

21% of 679 is 142.59

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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