Percent Increase and Decrease

What is the formula for finding the new value after a percent increase?

• New Value = Original Value x (1 + Percent Increase)

• New Value = Original Value x (1 - Percent Decrease)

• New Value = Original Value + Percent Increase

• New Value = Original Value / (1 + Percent Increase)

If the original number of students is 20 and it decreases to 15, what is the percent decrease?

• 20% decrease

• 25% decrease

• 30% decrease

• 15% decrease

If the original price of an item is $50 and the new price is $75, what is the percent increase?

• 25% increase

• 50% increase

• 75% increase

• 100% increase

What does a 100% increase mean?

• The new value is half of the original value.

• The new value is the same as the original value.

• The new value is double the original value.

• The new value is three times the original value.

If a car's value drops from $20,000 to $15,000, what is the percent decrease?

• 10% decrease

• 15% decrease

• 20% decrease

• 25% decrease

How do you calculate percent decrease?

• Percent Decrease = ((Original Value - New Value) / Original Value) x 100.

• Percent Decrease = ((New Value - Original Value) / New Value) x 100.

• Percent Decrease = (Original Value / New Value) x 100.

• Percent Decrease = (New Value / Original Value) x 100.

What is the formula for finding the new value after a percent decrease?

• New Value = Original Value x (1 - Percent Decrease)

• New Value = Original Value x (1 + Percent Decrease)

• New Value = Original Value - (Original Value x Percent Decrease)

• New Value = Original Value / (1 - Percent Decrease)

What is the importance of understanding percent increase and decrease in real life?

• It helps in making informed decisions in finance, shopping, and analyzing data.

• It is only useful for academic purposes and has no real-life application.

• It is primarily used in scientific research and experiments.

• It is only relevant for calculating taxes and not for everyday decisions.

If a shirt costs $40 and is on sale for $30, what is the percent decrease in price?

• 10% decrease

• 20% decrease

• 25% decrease

• 30% decrease

How do you calculate percent increase?

• Percent Increase = ((New Value - Original Value) / Original Value) x 100.

• Percent Increase = (New Value + Original Value) / Original Value x 100.

• Percent Increase = (Original Value - New Value) / New Value x 100.

• Percent Increase = (New Value - Original Value) / New Value x 100.