A store owner discounted some math books from $6.75 to $6.21. What percentage is the discount?
To calculate the percentage discount, first find the difference between the original price and the discounted price:
$6.75 - $6.21 = $0.54
Next, divide the discount amount by the original price and multiply by 100 to get the percentage:
($0.54 / $6.75) * 100 ≈ 8%
The discount percentage is approximately 8%.