Conversions
Applications
Interest
Percentage Change
Finding a Percentage of a Quantity
100
Convert 0.6 to a percentage
60%
100
You get a 20% discount on a t-shirt that has a marked price of 100 Rs. How much did you pay?
80 Rs.
100
You put $100 in a savings account with 3% simple interest. How much money do you earn interest after 1 year?
$3
100
Increase 100 by 10%
110
100
30% of 100
30
200
Convert 1/10 to a percentage
10%
200
You decide to donate 10% of your allowance to a charity. If your allowance is 550 Rs., how much will you donate?
55 Rs.
200
Jan earns 5% simple interest on her savings account each month. If she has $200 in her account, how much money in interest will she earn after 4 months?
200 x 0.05 x 4=10 x 4=$40
200
Decrease 90 by 10%
81
200
10% of 90
9
300
Convert .04 to a percentage
4%
300
A microwave cost $75, but it is on sale for 40% off. What is the sale price?
$45
300
Raj's puts $4000 in the bank. His money earns 2.5% simple interest. How much money does Raj have in the bank after 2 year?
$4200
300
Increase 10 by 35%
13.5
300
50% of 300
150
400
Convert 2/5 to a percentage
40%
400
A bag was 80 marbles in it. There are 20 green marbles, 30 blue marbles, 10 yellow marbles, and 20 purple marbles. What percentage of the bag is purple marbles?
25%
400
Juanita earns a salary of $40,000 per year. In addition, she earns a 2% commission on all paper products she sells. If Juanita sells $100,000 worth of paper products each year, then how much does she make total per year?
$42,000
400
Decrease $5 by 15%
$4.25
400
3% of 7
.21
500
Convert 123.5% to a decimal
1.235
500
In order to borrow enough money to buy the home she chose, Sally need to have 28% of the cost of the home. If the home cost $425,000, how much did she need to have?
$119,000
500

Jasmine invested $5000 in Balloons Inc. Her investment earns 5% p.a compounding monthly. How much money is her investment worth in 9 years? (round to two d.p)

$7834.23

500
Increase $70 by 42%
$99.4
500
8% of 1600
128
M
e
n
u