Understanding Percent Change

The video tutorial explains how to calculate the percent change by finding the difference between the new and original amounts, dividing by the original amount, and converting to a percentage. It provides examples of calculating percent increase from 80 to 100 and percent decrease from 100 to 80, highlighting the importance of identifying the original and new amounts. The tutorial concludes with a summary of the concepts covered.

What is the first step in calculating the percent of change?

• Multiply the new amount by 100

• Find the difference between the new and original amounts

• Divide the new amount by the original amount

• Add the new and original amounts

In the example of changing from 80 to 100, what is the percent change?

• 25% increase

• 25% decrease

• 20% increase

• 20% decrease

When calculating the percent change from 80 to 100, what is the original amount?

• 100

• 80

• 20

• 180

What does a negative percent change indicate?

• A decrease

• An increase

• No change

• An error in calculation

In the example of changing from 100 to 80, what is the percent change?

• 20% increase

• 25% decrease

• 25% increase

• 20% decrease