Percent of change

The video tutorial explains how to calculate the percent change from 19 to 5. It begins by identifying the change as a decrease of 14 and then moves on to explain how to express this change as a percentage. The tutorial covers the use of ratios and proportions to represent the percent change and demonstrates the calculation using cross multiplication, resulting in a 73.7% decrease.

What is the change when the value decreases from 19 to 5?

• 5

• 24

• 14

• 9

How is a ratio used to represent a change in value?

• By multiplying the change by the total

• By adding the change to the total

• By comparing the change to the total

• By subtracting the change from the total

What is the total percentage when you have 19 out of 19 sticks?

• 19%

• 100%

• 0%

• 50%

What mathematical method is used to find the percent change in this tutorial?

• Addition

• Division

• Cross multiplication

• Subtraction

What is the percent decrease from 19 to 5?

• 26.3%

• 100%

• 73.7%

• 50%