Calculating Percentages and Discounts

This lesson covers various real-world applications of percentages, including gratuity, commission, and taxes. It provides detailed explanations and examples of how these concepts are applied in everyday situations. The lesson also includes problem-solving exercises to reinforce understanding and concludes with a summary and instructions for a mid-module assessment.

What is the typical percentage range for gratuity in restaurants?

• 25-30%

• 35-40%

• 15-20%

• 5-10%

If a car salesperson earns a 10% commission on a $2,000 sale, how much do they earn?

• $100

• $250

• $150

• $200

How much room tax is paid for a 10-night stay at $200 per night with a 10% tax rate?

• $200

• $400

• $100

• $300

What is the original price of uniforms if a 5% discount brings the total to $2,992.50?

• $3,250

• $3,200

• $3,150

• $3,000

If a student must pay 75% of the uniform cost of $105, how much do they owe?

• $70

• $80

• $75

• $78.75

How much more does a student owe if they lose a uniform costing $105?

• $80

• $78.75

• $75

• $70

What is the constant of proportionality if school taxes increase by 2%?

• 1.00

• 1.02

• 1.20

• 2.00

If a taxpayer's school taxes rise from $4,000 to $4,020, was there a 2% increase?

• Only if the base was $3,000

• Yes

• Only if the base was $5,000

• No

What is the markup percentage if cookies bought for $0.25 are sold for $2.00?

• 400%

• 600%

• 200%

• 700%

If 78 cookies are sold instead of the estimated 60, what is the percent error?

• 20%

• 25%

• 23%

• 15%