Percent Application

Front

What is the formula to calculate a percentage of a given amount?

Back

Percentage = (Part / Whole) x 100

Front

How do you calculate a tip based on a percentage of a meal's cost?

Back

Tip = Meal Cost x (Tip Percentage / 100)

Front

If a meal costs $50 and you want to leave a 20% tip, how much is the tip?

Back

Tip = $50 x 0.20 = $10

Front

What is the total cost of a meal if the meal costs $40 and a 15% tip is added?

Back

Total Cost = Meal Cost + Tip = $40 + ($40 x 0.15) = $46

Front

How do you calculate the total cost including tax?

Back

Total Cost = Item Price + (Item Price x Tax Rate)

Front

If an item costs $30 and the tax rate is 8%, what is the total cost?

Back

Total Cost = $30 + ($30 x 0.08) = $32.40

Front

What is percent error and how is it calculated?

Back

Percent Error = |(Estimated Value - Actual Value) / Actual Value| x 100

Front

If you estimate that 150 people will attend an event but 180 actually attend, what is the percent error?

Back

Percent Error = |(150 - 180) / 180| x 100 = 16.67%.

Front

What is a commission and how is it calculated?

Back

Commission = Sale Amount x Commission Rate

Front

If a salesperson sells a car for $20,000 and earns a 5% commission, how much is the commission?

Back

Commission = $20,000 x 0.05 = $1,000