Recent developments in surgical procedures change the average healing time for some operations from 8 weeks to 3 weeks.
Find the percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase or decrease.
62.5% Decrease
100
The Lombardo family went out to
dinner and the cost of their meal
was $62. If they left a 20% tip,
how much did they leave?
$12.40
100
The Spanish club sold hot
pretzels as a fundraiser. The pretzels
normally sold for $2.00, but near the
end of the sale the price was reduced
by 25%. What was the new price for a
hot pretzel?
$1.50
100
$500, 4%, 1 year. What is the total cost that needs to be paid back with the interest?
$520
100
How do you turn a number into a decimal?
Move decimal 2 places to the left.
200
Original: $30
New: $110
Find the percent of change. Round to the nearest
whole percent if necessary. State whether the percent of change is an increase or decrease.
267% Increase
200
Josiah went to the local
barber to get his hair cut. It cost
$18 for the haircut. Josiah tipped
the barber 15%. What was the total
cost of the haircut including the
tip?
$20.70
200
A jewelry store is having a
50% off sale for all necklaces. During
this sale, what is the cost of a
necklace that regularly costs
$49.98?
$24.99
200
How much interest
will Hannah earn in 1 year if she
deposits $630 in a savings account at
6.5% simple interest?
$40.95
200
How do you turn a decimal into a percent?
Move decimal over 2 places to the right.
300
Original: 250
New: 100
Find the percent of change. Round to the nearest
whole percent if necessary. State whether the percent of change is an increase or decrease. 60% Decrease
60% Decrease
300
Madeline took 3 friends out
for dinner. The cost of the meals
was $46.50. She left a 20% tip. What
was the total cost including the
tip?
$55.80
300
Find the price of a $35 basketball that is on sale for 50% off the regular price.
$17.50
300
Terry invested $2,200
in the stock market for 2 years. If the
investment earned 12%, how much
money did Terry earn in 2 years?
$528
300
Tax and tip means that you are adding money to the total cost. True or false?
True
400
Original: $84
New: $100
Find the percent of change. Round to the nearest
whole percent if necessary. State whether the percent of change is an increase or decrease.
19% Increase
400
The total cost of Mrs. Draper’s
haircut including tip was $38. If she
gave her hair dresser a 20% tip, how
much was her haircut?
$30.40
400
A box of laundry detergent is on sale for $6.50. If this price
represents a 40% discount from the original price, what is the original price to the nearest cent?
$10.83
400
When Melissa was
born, her parents put $8,000 into a
college fund account that earned
9% simple interest. Find the total
amount in the account after
18 years.
$20,960
400
What is the process for tip and tax to find the total cost?
1. Turn percent into a decimal.
2. Multiply decimal by original value.
3. Add that value to the original value.
500
Alicia planted 45 tulip bulbs
last year. This year she plans to plant
65 bulbs. Find the percent of increase
in the number of tulip bulbs to the
nearest tenth.
44.4%
500
The Striton family
had a meal catered for a wedding
rehearsal dinner. The cost of the
dinner was $476. There was a 5%
sales tax and they left a 15% tip.
What was the total cost including the
sales tax and the tip?
$571.20
500
Nathan is buying a cell
phone for his business. The regular
price of the cell phone is $179. If he
buys the phone in the next 2 weeks, he
will get a 20% discount. What will be
the sale price if he buys the phone
tomorrow?
$143.20
500
What is the interest you need to pay if you borrow $850 with a 2.5% interest rate?