Percent of Change

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 selling price after a markup?

Back

To calculate the selling price after a markup, use the formula: Selling Price = Cost Price + (Markup Percentage x Cost Price).

Front

If a DVD costs $15 and is marked up by 23%, what is the selling price?

Back

Selling Price = $15 + (0.23 x $15) = $18.45.

Front

What does a discount mean in terms of percent?

Back

A discount is a reduction in the original price, expressed as a percentage of the original price.

Front

How do you calculate the total price after applying a discount and tax?

Back

Total Price = (Original Price - Discount) + Tax.

Front

If a toaster oven costs $68 and is 30% off, what is the sale price before tax?

Back

Sale Price = $68 - (0.30 x $68) = $47.60.

Front

What is the formula for calculating percent change?

Back

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

Front

If Penelope spent $120 last week and $105 this week, what is the percent change?

Back

Percent Change = (($105 - $120) / $120) x 100% = -12.5% (decrease).

Front

How do you classify a percent change?

Back

A percent change is classified as an increase if the new value is greater than the original value, and a decrease if the new value is less.

Front

If the price of gas increased from $2.15 to $2.68, what is the percent increase?

Back

Percent Increase = (($2.68 - $2.15) / $2.15) x 100% = 24.7%.