Understanding Percentages and Their Applications

This video tutorial explains how to calculate the percent of a given value using multiplication. It introduces the formula 'whole times percent equals part' and demonstrates its application through examples, such as calculating the number of freshmen in a school, commission from sales, and tax on a car. The tutorial covers both calculator and long multiplication methods, emphasizing the importance of converting percentages to decimals. It concludes by highlighting the formula's relevance in real-life scenarios.

What is the formula used to find the part of a whole using a percentage?

• Whole times percent equals part

• Part times percent equals whole

• Percent divided by whole equals part

• Whole divided by percent equals part

In the example of Washington High School, what does the number 850 represent?

• The number of teachers

• The number of freshmen

• The number of seniors

• The total number of students

How do you convert a percentage to a decimal?

• Add a zero to the end

• Divide by 10

• Move the decimal point two places to the left

• Move the decimal point one place to the right

Why is it important to verify your calculated answer?

• To make sure the answer is a fraction

• To check if the answer is reasonable

• To ensure the answer is a whole number

• To confirm the answer is a percentage

What is the first step in solving a percent problem without a calculator?

• Estimate the answer

• Convert the percent to a fraction

• Divide the whole by the percent

• Perform long multiplication

Sam earns an 8% commission on sales. How is the commission calculated?

• By dividing sales by 8%

• By multiplying sales by 8%

• By adding 8% to sales

• By subtracting 8% from sales

What is the tax rate applied to the car purchase in the example?

• 6.3%

• 7.3%

• 8.3%

• 5.3%

What will future examples focus on using the percent formula?

• Calculating the whole when the part and percent are known

• Finding the part when the whole and percent are unknown

• Both A and C

• Determining the percent when the whole and part are known