Percent Error
Zack expected to earn $425 in a week at his new job but his first check was $500. What was the percentage error?
What is 15%?
Spent: $45
Tip: 15%
How much tip was left?
$6.75 in tip
Car sold for $25,999
Commission rate: 3.5%
Commission?
What is $909.97?
Spent: $4.50
Discount: 10%
Discount Price?
$4.05 discount/sales price
Spent: $32.25
Tax: 7%
Total cost including tax?
$34.51 total
Makyrah estimated that the repairs to her car would cost $80. In fact they cost $120.
What was the percentage error?
What is 33.3%?
Total Spent: $42.50
Tax: 7%
Tax?
$2.98 in tax
House sold for $250,000
Commission rate: 7%
Commission?
What is $17,500?
Spent: $275.99
Discount: 40%
Discount/Sales Price?
$165.60 discount/sales price
Tip: 18%
Total Spent including tip?
$15.33 total including tip
The basketball team won 25 games this year. The local newspaper erroneously reported that they won 28 games this year. What was the percentage error by the newspaper?
What is 12%?
Spent: $2.99 for coffee and $4.99 for food
Tip: 20%
Tip?
$1.60 in tip
Jewelry sold for: $50,000
Commission rate: 2.5%
Commission?
What is $1250?
Spent: $4.50 & $12.75
Discount: 15%
Total Discount/Sales Price?
$14.66 discount/sales price
Spent: $25.99 & $14.59
Tax: 6.5%
Cost including tax?
$43.22 total including tax
The Caldwell Family hosted a large Christmas party for the neighborhood. They expected 260 people to show up but 325 people showed up instead. Calculate the percentage error.
What is 20%?
Make: $240.99
Tax: 4.5%
Tax?
$10.84 in tax
Make: $7/hour & worked 8 hours
Commission: 4% of $30,000 in sales
Total made?
What is $1256?
Item 1: $14.99 for 20% off
Item 2: $5.65 for 40% off
Total Discount Price?
$15.38 discount/sales price
Tip: $25%
Cost including tip?
$24.21 including tip
Jacoby uses his thermometer and finds the boiling point of ethyl alcohol to be 85o Celsius. He looks in a reference book and finds that the actual boiling point of ethyl alcohol is 95oC. What is his percentage error?
What is 10.52%?
Spent: $299.99 for gaming system & $899.99 for a TV
Tax: 6.5%
Tax?
$78.00 in tax
Make: $10/hour and works for 8 hours a day
Commission: 3.5% on sales of $2500 for the week
Total made in a 5 day week?
What is $487.50?
Item 1: $301.50 for 40% off
Item 2: $29.99 for 5% off
Total Discount Price?
$209.39 discount/sales price
Spent: $24.15
Tax: 5.5%
Tip: 20%
Total including tax and tip?
$30.57 including tax and tip