In store a, a book that regularly sells for $24.99 is on sale at 15% off. in store b, the same book regularly sells for $27.99 and is on sale at 25% off. which store sells the book for the lower sale price?
If the book at shop a is sold at 15% then it goes for 15/100 * 24.99 =$3.74 Basically the book has a discount of $3.74. Its price = $24.99 - $3.74 = $21.25 On the other hand at shop b. A 25% off sale at $27.99 becomes 25/100 * 27.99 = $6.99 So its price becomes $27.99 - $ 6.99 = $21.99. Store A sells the book for the lower price.