Percent of Change
Is the following an increase or decrease?
$120 to $50
Decrease
Original Price: $130
Discount: 60%
Sale Price: ?
$52
Cost to Store: $45
Mark-Up: 35%
Selling Price: ?
$60.75
Interest: ?
Principal: $1450
Interest Rate: 9%
Time: 5 years
$652.50
Interest: $45
Principal: ?
Rate: 3%
Time: 2 years
$750
Find the percent of change:
60 pounds to 80 pounds
33.3% INCREASE
Original Price: $32
Discount: ?
Sale Price: $8
25%
Cost to store: $0.95
Mark-Up: 60%
Selling Price: ?
$1.52
Interest: ?
Principal: $400
Interest Rate: 7%
Time: 3 years
Balance: ?
Interest = $84
Balance: $484
Interest: $60
Principal: $750
Rate: 4%
Time: ?
1.6 years
Find the percent of change:
32 feet to 16 feet
50% DECREASE
Original Price: ?
Discount: 20%
Sale Price: $14.40
$72
Mark-Up: 60%
Selling Price: ?
$207.20
Interest: ?
Principal: $1200
Rate: 5.6%
Time: 4 years
Balance: ?
Interest = $268.80
Balance = $1468.80
Interest: $825
Principal: $2500
Rate: 5.5%
Time: ?
6 years
12 gallons to 36 gallons
200% INCREASE
Original Price: $99.99
Discount: 13%
Sale Price: ?
$86.99
Cost to Store: $18.00
Mark-Up: 70%
Selling Price: ?
$30.60
Interest: $10
Principal: $250
Rate: 4%
Time: ?
1 year
You put $500 in a savings account. The account earns $15.75 in simple interest in 6 months. What is the annual interest rate?
* REMEMBER - TIME MUST BE IN YEARS *
6.3%
Find the percent of change:
400 meters to 350 meters
12.5% DECREASE
Original Price: $100.00
Discount: 21%
Sale Price: ?
$79.00
Cost to Store: $99.50
Mark-Up: 95%
Selling Price: ?
$194.03
Interest: $40
Principal: $400
Rate: ?
Time: 2 years
5%
You deposit $350 in a savings account. The account earns 2.5% simple interest per year. What is the balance after 2 years?
* Find the interest first!
* Add the interest to the principal!
Interest:17.50
Balance: $367.50