Percent Increase and Decrease Problems

Front

What is the formula to calculate percent increase?

Back

Percent Increase = ((New Value - Old Value) / Old Value) * 100

Front

What is the formula to calculate percent decrease?

Back

Percent Decrease = ((Old Value - New Value) / Old Value) * 100

Front

If a product's price increases from $100 to $120, what is the percent increase?

Back

20%

Front

If the number of students in a class increases from 27 to 30, what is the percent change?

Back

11%.

Front

How do you round a percent increase to the nearest whole number?

Back

If the decimal is .5 or higher, round up; if it's less than .5, round down.

Front

What does a percent increase of 41% indicate about the original value?

Back

The new value is 41% greater than the original value.

Front

What does a percent decrease of 20% indicate about the original price?

Back

The new price is 20% less than the original price.

Front

How do you interpret a percent change of 0%?

Back

There is no change between the old value and the new value.

Front

What is the significance of understanding percent change in real-life applications?

Back

It helps in making informed decisions about pricing, budgeting, and financial planning.

Front

If a scooter's regular price is $65.50 and it is on sale for $52.40, how do you calculate the percent decrease?

Back

Percent Decrease = ((65.50 - 52.40) / 65.50) * 100 = 20%.