What is 20% of $60?
20% is 20/100 mutiplied by $60:
$12 is what percent of $60?
$12 is divided by $60 and multiplied by 100%:
$12 is 20% of what?
$12 is divided by 20%:
What is the percentage change from $40 to $50?
The difference between $50 and $40 is divided by $40 and multiplied by 100%:
