Sharp EL-738F Operation Manual page 57

1
Sales in a company were $75,000 during the fi rst year of opera-
tion. The second year's sales were $116,000. What percentage
greater were the second year's sales than fi rst year's sales?
In this calculation, the number of compound periods is set to 1
(default).
Procedure
Bring up the initial dis-
play in NORMAL mode.
Select percent change/
compound interest
calculations, and set all
the variables to default
values.
Enter the old value.
Enter the new value.
Calculate the percent
change.
Answer: The second year's sales increased by 54.67% over
the fi rst year's sales.
2
You opened an account compounding annually and deposited
$8,000 eighteen years ago. You currently have $9,800. What is
the compound interest rate?
Procedure
Bring up the initial dis-
play in NORMAL mode.
Select percent change/
compound interest
calculations, and set all
the variables to default
values.
Enter the old value.
Calculating percent change
s
. B . b
75000 Q
i 116000 Q
i @
Calculating compound interest rate
s
. B . b
8000 Q
Key operation
Key operation
55
Display
000
OLD PRC(PV)=
000
OLD PRC(PV)=
7500000
NEW PRC(FV)=
11600000
%(I/Y)=
5467
Display
000
OLD PRC(PV)=
000
OLD PRC(PV)=
800000