HP 12C User Manual page 205

Example 2: Using the preceding program, solve for the monthly payment using
the information given in example 1. Then change the yearly interest to 15% and
solve for the new payment amount.
Keystrokes
(RPN mode)
f]
12?0
3?1
10\12z
?2
750?3t
15\12z
?2t
Example 3: Using the information from example 1, what monthly payment is
necessary to yield the lessor 15% annually if one payment is due at the time of
closing ?
Assuming that the previous example was just solved, the keystrokes are as follows:
Keystrokes
(RPN mode)
1?1t
Since this problem is an annuity due situation (one payment at the beginning of the
period) the calculation could also be done as follows:
Keystrokes
(RPN mode)
g×
fCLEARG
12n
15gC
750Þ$P 750Þ$P
File name: hp 12c pt_user's guide_English_HDPMF123E27
Printed Date: 2005/8/1
Keystrokes
Display
(ALG mode)
f[
12.00
12?0
3.00
3?1
0.83
10z12³
?2
0.83
64.45
750?3t
1.25
15z12³
?2t 65.43
Keystrokes
Display
(ALG mode)
66.86
1?1t
Keystrokes
Display
(ALG mode)
g×
fCLEARG
12.00
12n
1.25
15gC
66.86
Page: 205 of 275
Dimension: 14.8 cm x 21 cm
Section 14: Leasing 205
Duration of lease.
Number of advance
payments.
Periodic interest rate.
Monthly payment to be
received.
Monthly payment to
achieve a 15% yield.
Monthly payment to be
received.
Duration of lease.
Periodic interest rate (into i).
Monthly payment to be
received.