Percent Change

Front

What is percent change?

Back

Percent change is a measure of how much a quantity has increased or decreased relative to its original value, expressed as a percentage.

Front

How do you calculate percent change?

Back

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

Front

If the price of an item increases from $100 to $120, what is the percent change?

Back

20%.

Front

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

Back

11%.

Front

What is the percent change if a purse's price goes from $45 to $54?

Back

20%.

Front

If gym shoes originally cost $120 and are now $69.98, what is the percent change?

Back

42%.

Front

Santos could walk 2 miles in 40 minutes, and now he can do it in 25 minutes. What is the percent change in time?

Back

37.5%.

Front

What does a positive percent change indicate?

Back

A positive percent change indicates an increase in value.

Front

What does a negative percent change indicate?

Back

A negative percent change indicates a decrease in value.

Front

If an item is on sale for 30% off, how do you find the sale price?

Back

Sale Price = Original Price x (1 - Discount Rate).