6: Interest Rate Conversions
89
effective interest rate based on your payment periods. Last, convert the
effective rate to the nominal rate based on the bank’s compounding
periods.
Example: Balance of a Savings Account.
Starting today, you make
monthly deposits of $25 into an account paying 5% interest
compounded daily (365-day basis). At the end of 7 years, how much
will you receive from the account
?
Keys: Display:
Description:
"
h
FH9H7:
7E05E4<A;<="
i
7E05E4<A;<=
5"
:;0HF?@2"
Periodic interest-rate
conversion menu.
365
1
58%'.&(("
Stores bank’s
compounding periods.
5
j
<E068.&(("
Stores bank’s nominal
interest rate.
k
HGG68.&#%"
Calculates effective interest
rate for daily compounding.
12
1
58#$&(("
Stores number of deposits
per year.
j
<E068.&(#"
Calculates equivalent
nominal interest rate for
monthly compounding.
ee
]
<
"
.&(#"
Switches to TVM menu;
NOM%
value is still in
calculator line.
s
U
;6@28.&(#"
Stores adjusted nominal
interest rate in
I%YR
.
.
12
Y
Z
e
"
#$
5?@2
JH=;<
0EAH"
Sets 12 payments per
year; Begin mode.