Exploring Percentage Increase and Decrease Challenges

A store is having a sale where all items are 20% off. If a shirt originally costs $30, what is the sale price of the shirt?

• $28

• $25

• $20

• $24

Emily scored 75 out of 100 on her math test. What percentage did she score?

• 80%

• 70%

• 75%

• 90%

A car's value decreased from $20,000 to $15,000. What is the percentage decrease in the car's value?

• 30%

• 15%

• 25%

• 20%

A restaurant increased its prices by 15%. If a meal originally cost $40, what is the new price after the increase?

• $46

• $50

• $42

• $38

Tom had 50 marbles and gave away 10. What percentage of his marbles did he give away?

• 15%

• 25%

• 30%

• 20%

A book was marked down from $25 to $18. What is the percentage decrease in the price of the book?

• 15%

• 20%

• 10%

• 28%

Sarah bought a laptop for $800 and later sold it for $600. What percentage loss did she incur on the sale?

• 30%

• 15%

• 20%

• 25%

A school had 200 students last year and now has 240 students. What is the percentage increase in the number of students?

• 30%

• 15%

• 20%

• 25%

A jacket was originally priced at $60 but is now on sale for $45. What is the percentage discount on the jacket?

• 30%

• 25%

• 40%

• 15%

If a population of a town was 10,000 and it increased to 12,500, what is the percentage increase in the population?

• 20%

• 25%

• 30%

• 15%