Percent Calculations and Applications

This video tutorial covers solving multi-step problems involving ratios, proportions, and percents, with a focus on percent increase, decrease, and gratuities. It introduces a template for setting up percent problems and provides examples of basic percent calculations. The video also addresses word problems related to discounts, markups, and gratuities, demonstrating how to calculate total costs in practical scenarios.

What is the main focus of this video tutorial?

• Basic arithmetic operations

• Simple interest calculations

• Percent increase, decrease, and gratuities

• Commissions and bonuses

What is the first step in solving percent problems according to the video?

• Using a calculator

• Writing down words to keep numbers straight

• Drawing a diagram

• Guessing the answer

In the example 'What is 30% of 70?', what does the number 70 represent?

• The whole

• The part

• The percent

• The increase

If a shirt is on sale for $45, which is $15 off the original price, what is the original price?

• $75

• $60

• $45

• $30

A business owner buys a sofa for $90 and sells it for $210. What is the percent increase?

• 100%

• 50%

• 133.3%

• 233.3%

If a pie is on sale for 25% off the listed price of $7.25, what is the sale price?

• $6.00

• $5.44

• $1.81

• $7.25

You leave a 20% tip of $1.75 at a restaurant. What was the price of your lunch before the tip?

• $7.00

• $5.00

• $8.75

• $10.50