Can someone plz explain??? I don't get this?? Example 4:
Cloths Are Us and Ratcliffe's are having sales. At Clothes Are Us, a pair of sneakers is on sale for 40% off the regular price of $50. At Ratcliffe's the same brand of sneakers is discounted by 30% off the regular price of $40. Which store has the better sale price? Explain.
Find the sale price of the sneakers at each store.

CLOTHES ARE US
60% of $50=0.60*$50=$30

RATCLIFFE'S
70% of $40=0.7*$40=28

$28<$30

I don't get how they got the percents 60% and 70%