Percent change

Lucas, Khayliana, and Hanna are playing a game of 'Word Association' in their English class. Lucas says a word and the others have to quickly respond with a related word. When Lucas says 'Increase', which of the following words could Khayliana or Hanna say?

• Coupon

• Sale

• Mark down

• Sales tax

Imagine Khayliana, Ethan, and Hanna are on a shopping spree at a local clothing store where there is a 25% discount on all items. Can you calculate what percentage of the original price they will end up paying for their trendy new outfits?

• 100%

• 75%

• 125%

• 80%

Joey, Dahyun, and Erin are out for a meal at a popular local diner. They enjoyed their meal and want to show their appreciation to their server by leaving a 20% tip. Can you help them calculate the total percentage they will pay?

• 100%

• 80%

• 120%

• 20%

Ethan, Joey, and Dahyun are planning a movie night at home. They decide to order some pizzas and want to give the delivery person a 10% tip. The original bill for the pizzas was $48.00. Can you help them figure out the total amount they will be paying?

• $10.00

• $58.00

• $4.80

• $52.80

Steven, Ellie, and Abigail are planning a picnic and they found a cool picnic basket on Amazon for $32.00. Luckily, they have a promo code for 20% off their total purchase. How much will they pay for the picnic basket after applying the discount?

• $25.60

• $6.40

• $38.40

• $12.00

How well do you feel you understand percent change?

• I did not understand the slideshow and need help before doing my homework

• I kinda understand and think I can try my homework

• I think I will be able to do my homework on my own but need more help before a quiz

• This is easy, I could take the quiz tomorrow and pass!

Erin had 5 books and she gave 2 books to Steven. What is the percent change in the number of books Erin had? Did the number of books increase or decrease?

• 40% increase

• 40% decrease

• 0.4% increase

• 0.4% decrease

• 0.04% increase

Soriah had 10 novels in her library. Dahyun gave her 3 more. What is the percent change in Soriah's novel collection? Did it increase or decrease?

• 0.3% increase

• 0.3% decrease

• 0.03% increase

• 30% decrease

• 30% increase

Sunhoo, Dahyun, and Soriah are planning a road trip to a music festival. Two weeks ago, they found a rental van that cost $300. Now, the same rental van costs $375. Can you help them figure out the percent increase in the rental van cost?

• .25%

• 25%

• .40%

• 40%

Steven, a young architect, is working on a model of a skyscraper that requires a pillar of 4.75 inches. He constructs a pillar that measures 4.769 inches. Charlotte, his colleague, is interested to know the percent error in Steven's pillar length. Can you help her calculate it?

• 0.4%

• 40%

• 99%

• .99%