Percent of Change: Word Problems

Front

What is percent of change?

Back

Percent of change is a way to express how much a quantity has increased or decreased in relation to its original amount, calculated as (new value - original value) / original value x 100.

Front

How do you calculate the percent discount?

Back

Percent discount is calculated by taking the difference between the original price and the sale price, dividing it by the original price, and then multiplying by 100.

Front

If a shirt originally costs $30 and is on sale for $24, what is the percent discount?

Back

20%.

Front

What is the formula for calculating percent change?

Back

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

Front

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

Back

25% decrease.

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 a product's price increased from $50 to $60, what is the percent change?

Back

20% increase.

Front

How do you find the original price if you know the sale price and the percent discount?

Back

Original Price = Sale Price / (1 - (Percent Discount / 100)).

Front

If a laptop was originally priced at $800 and is now $720, what percent discount was applied?

Back

10% discount.