Percent Increase and Decrease

Hector’s restaurant bill came to $18.30. He paid a total of $22.00 to leave a tip. What percent of a tip did Hector leave the waitress?

Stephen earns a 2.5% commission on the amount of his sales at the electronics store. He also earns a base pay of $325 per week. How much did he earn last week if he sold $1100 in electronics?

Cavan is buying a new pair of shoes priced at $65. He has a coupon for a 15% discount. He must pay 8.5% in sales tax. What is the total cost he will pay for the shoes?

Sasha has mastered 40 vocabulary terms preparing for her vocabulary final. She wants to increase the number of terms she knows by 25%. How many vocabulary terms will Sasha have mastered after the increase?

Helena’s restaurant bill came to $12.30. She paid a total of $15.50 to leave a tip. What percent of a tip did Helena leave the waitress?

A clothing store just received a new shipment of coats purchased for $80 each. The store will apply a 120% markup. What will be the retail price of a coat?

A clothing store just received a new shipment of shirts purchased for $15 each. The store will apply a 140% markup. What will be the retail price of a shirt?

Jen is shopping for a new pair of pants. The store is advertising pants for 35% off. If the pants Jen wants to buy regularly sell for p dollars, what expression can she use to find the sale price of the pants?

Over the summer, Raymond typed 3000 words a day. After school began this fall, he typed 2000 words a day. What is the percent decrease?

Brianna is buying a bike for $299.99. She has to pay 8% sales tax. Write an expression that she can solve to find the total cost of the bike.

Krista is buying a new pair of pants priced at $45. She has a coupon for a 35% discount. She must pay 7.5% in sales tax. What is the total cost she will pay for the pants?

Samson has mastered 30 Science terms preparing for his Science final. He wants to increase the number of terms he knows by 30%. How many Science terms will Samson have mastered after the increase?

Cam is buying a video game for $32.99. He has to pay 7% sales tax. Write an expression that he can solve to find the total cost of the video game.

Sandra earns a 5.5% commission on the amount of her sales at the phone store. She also earns a base pay of $250 per week. How much did she earn last week if she sold $1400 in phones?

Over the summer, Kristin read 60 pages a day. After school began this fall, she only read 25 pages a day. What is the percent decrease?

Bryce is shopping for a new coat. The store is advertising coats for 15% off. If the coat Bryce wants to buy regularly sells for c dollars, what expression can he use to find the sale price of the coat?