Transcript Percent Applications

Percent Applications
Find a Missing Value
What percent of 85 is 15?
x 15

100 85
15 is about
17.6% of 85
Find a Missing Value
22% of what number is
15?
15 is 22% of
22 15

68.2
100 x
Find a Missing Value
60% of 120 is what
number?
72 is 60% of
60
x

120.
100 120
Find a Missing Value
Brady got 12 points out of 17 on a
quiz. What percent did he earn ?
Brady earned a
x 12

70.6% on the
100 17 quiz
Find a Missing Value
 The 8 drawings Cassie drew with
marker were 20% of the total number of
drawings she drew. How many did she
draw altogether?
20 8

100 x
Cassie drew
40 pictures
altogether.
Percent Increase and Decrease
A stock was worth $52.65 last week
and this week it is worth $78. What
is the % of change in the stock
value?
The stock
x
25.35

increased by
100 52.65 48.1%
Percent Increase and Decrease
An account had $28000 in it in
January. In December it had
$18000. What was the percent of
change in the value of the account?
x
10000

100 28000
The account
decreased by
35.7%
Discounts and Sale Prices
A DVD player has a regular price of
$280 and is on sale for 35% off ?
What is the discount?
35
x

100 280
The discount is
$98
Discounts and Sale Prices
A car has a regular price of $16999,
but is on sale for 15% off? What
would the SALE PRICE be?
15
x The discount would

be $2549.85 and the
100 16999 sale price would be
$14449.15
Tax
A CD has a cost of $14.99. If you
have to pay 6.2% tax, how much tax
would you have to pay ?
6.2
x

100 14.99
You would
have to pay
$.93 tax
Tax
A picnic table costs $325. If you
have to add 4% tax, what would the
total cost be?
The tax would be
4
x $13, and the total

100 325 would be $338
Commission
Alex is a car salesman and earns 6%
commission. If he sells a $22,500
car how much would he earn?
6
x

100 22500
Alex would
earn $1350.
Commission
 Emma is a famous rock star and earns a
2% commission on the sales of her
newest CD. If it has $1,000,000 in total
sales, how much would she earn?
Emma would
2
x

earn
$200,000
100 1000000
Simple Interest
 Use the formula I=Prt
 If you borrow $18000 at an annual
interest rate of 8% for 4 years, how
much interest will you have to pay?
I  Pr t
I  18000(.08)(4)
You would have
to pay $5760 in
interest.
Simple Interest
I
I
 Use the formula I=Prt
 If you borrow $7500 an annual interest
rate of 9.2% for 18 months, how much
will you have to pay back altogether?
You
would
have
to
 Pr t
pay $1035 in
 7500(.092)(1.5) interest, and $8535
altogether