Percent Change and Rounding Concepts

In this video, Mr. J explains how to calculate percent change using a real-world example of a house price decrease. The process involves subtracting the original value from the new value, dividing the result by the original value, and converting the decimal to a percentage. The example demonstrates a decrease from $310,000 to $295,000, resulting in a 5% decrease. The video concludes with a reminder to check the description for more examples.

What is the first step in calculating percent change?

• Divide the new value by the original value

• Subtract the original value from the new value

• Multiply the original value by 100

• Add the new value to the original value

In the example, what was the original price of the house?

• $295,000

• $310,000

• $300,000

• $305,000

What is the amount of change in the house price?

• $30,000

• $15,000

• $20,000

• $25,000

How do you convert a decimal to a percent?

• Add 100

• Multiply by 100

• Subtract 100

• Divide by 100

What is the decimal representation of the percent change in the example?

• 0.0283

• 0.0483

• 0.0583

• 0.0383

To what number is 4.83 rounded to the nearest whole number?

• 3

• 6

• 5

• 4

What does a negative percent change indicate?

• An increase in value

• A decrease in value

• No change in value

• An error in calculation

What was the percent decrease in the house price?

• 7%

• 4%

• 5%

• 6%

Why is it important to divide by the original value when calculating percent change?

• To find the change relative to the original value

• To simplify the calculation

• To avoid negative numbers

• To ensure the result is a percentage

What symbol is used to indicate an approximate value?

• Greater than sign

• Equal sign

• Approximately equal sign

• Less than sign