Question

If a pair of shoes has an original price of $80 and they are on sale for $48, what is the percent of discount?

Answer 1

$80 is the full price (100% of the original price)
That means that for every 1% you have $(80/100) = $0.8.

This equation represents that relation:

1% _________ $0.8

If we divide both sides of this relation (equation) by 0.8, we get:

1.25% ______ $1

Can you finish the problem now?

Answer 2

Yes thank you @fgiancarelli