% Increase/Decrease
What is the one difference in solving a percent increase problem compared to decrease
Increase = addition
Decrease = subtraction
A tax rate is set by who and is always in the form of what.
It is set by the city government and is always a percentage.
Example: Waterloo, Iowa has a sales tax percentage of 7%
Why might measurement error happen?
1. Not measured precisely (not in straight line)
2. Not use the measuring tool correctly
3. Read the measurement wrong
How many steps does it take to solve commission?
1 step
Explain what markup and markdown is.
Markup- Price increases on an item.
Markdown- Price decreases on an item.
A juice company claims their new bottles hold 25% more juice than before. Originally, the bottles held 32 ounces of juice. How many ounces of juice do the bottles hold now?
40 ounces of juice.
Does tip come before or after tax?
After tax.
A student estimated that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error for her estimate?
40%
A Ford dealership sells a new 2025 F-150 for $37,450.
The salesman who sold it receives a 25% commission. How much will they make in commission?
$9,362.50
Two times to the left.
A furniture store increases the price of a table by 40%. Originally, the table cost $250. What is the new price of the table?
$350
The total after tax is $55.60.
You want to leave a 25% tip. How much will you leave?
$13.90
A radar gun measured the speed of a baseball at 103 miles per hour. If the baseball was actually going 102.8 miles per hour, what was the percent error in this measurement?
.19%
A salesman named Bob sells a 2025 Chrysler Pacifica for $42,450 and earns a 20% commission.
If he sold a total of 3 in a month how much did he make that month in commission alone.
$25,470
To change a decimal to a percentage how many times and in which direction do you move the decimal point?
Two times to the right
A jacket originally cost $80, but it is now on sale for 35% off. What is the sale price of the jacket?
$52
Here is a receipt from a steakhouse restaurant. Calculate the total if the sales tax was 7.2% and you left a 20% tip.
Porterhouse Steak - $65.99
Roasted Brussels Sprouts - $7.99
Blackberry Lemonade - $4.99
Subtotal: $78.97
$101.59
It took 48 minutes to drive downtown. An app estimated it would be less than that. If the error was 20%, what was the app’s estimate?
38.4 minutes
A 2025 Jeep Wrangler is $32,095. At this Jeep dealership salesmen receive a 12% commission.
Salesman 1 sells it at full price.
Salesman 2 sells it at a 20% discount.
How much money did salesman 2 lose out on.
Salesman 2 lost out on $770.28 by offering a discount.
Match up the words to the following definitions
1. The percentage of a retail price of a good or service paid to the government.
2. A percentage of a total sale amount that a salesperson earns as payment for selling a product or service
1. Tax
2. Commission
A car dealership increases the price of a car by 15%, then later offers a 10% discount on the new price. If the original price of the car was $20,000, what is the final price after both changes?
$20,700
Your subtotal at Buffalo Wild Wings is $24
Your tax added is 8.5%
You have a coupon that takes 25% off of your total before tip.
How much would your total be after leaving a 15% tip.
$22.46
A farmer estimated that there were 25 gallons of water left in a tank. If this is an underestimate by 16%, how much water was actually in the tank?
About 29.8 gallons
A fitness center sells gym memberships where the center keeps $70 per membership, and the employee who sells it earns a $15 commission.
1. 17.6%
2. $35.20
3. $165.60
Match up the words to the following definitions
1. A fee paid for borrowing money.
2. An additional amount of money calculated as a percentage of a total cost, typically given to someone providing a service.
1. Intrest
2. Tip/Gratuity