Understanding Percentage Growth in Stock Portfolios

The video tutorial covers solving percentage problems using real-life examples. It begins with calculating the growth of a stock portfolio by 15%, demonstrating the step-by-step process of converting percentages to decimals and performing multiplication. The tutorial then moves on to a more complex problem, where algebra is used to determine the original amount of money before a 25% growth. The instructor emphasizes the importance of understanding these concepts for practical applications, such as in finance, and encourages viewers to practice and rewatch the video for better comprehension.

If a stock portfolio starts with $95 and grows by 15%, what is the new total amount?

• $105.00

• $100.00

• $109.25

• $110.00

What is the decimal representation of 15%?

• 0.15

• 1.5

• 15

• 0.015

How did the narrator realize the mistake in calculating 15% of 95?

• By using a calculator

• By checking the multiplication steps

• By comparing with 15% of 100

• By asking a friend

After a 15% growth, what is the final amount if you start with $95?

• $109.25

• $100.00

• $95.00

• $110.00

If a portfolio grows by 25% to become $100, what was the initial amount?

• $80.00

• $75.00

• $85.00

• $90.00

What equation represents the problem where a portfolio grows by 25% to become $100?

• x - 0.25x = 100

• x * 0.25 = 100

• x + 0.25x = 100

• x / 0.25 = 100

What is the value of x if 1.25x equals 100?

• 80

• 75

• 100

• 125

How many times does 125 go into 1000?

• 6

• 9

• 7

• 8

What is the relationship between 25% and 1/4?

• 25% is unrelated to 1/4

• 25% is more than 1/4

• 25% is less than 1/4

• 25% is equal to 1/4

If a portfolio grows by 25% and ends up at $100, what was the growth amount?

• $25

• $15

• $20

• $30