(12C) Deferred Monthly Annuity for the HP 12C
03-16-2014, 11:26 PM (This post was last modified: 06-15-2017 01:34 PM by Gene.)
Post: #1
 Eddie W. Shore Senior Member Posts: 1,290 Joined: Dec 2013
(12C) Deferred Monthly Annuity for the HP 12C
Input - Store before running:
R0 = months to retirement
R1 = months of retirement (annuity)
PMT = monthly annuity payment
i = discount rate

Output:
1. Press R/S to get the value of all annuity
2. Press R/S to get the present value of the deferred annuity

Program:
Key : Step - Key Code
0 : 01- 0
FV : 02 - 15
RCL 1 : 03 - 45, 1
n : 04 - 11
PV : 05 - 13
R/S : 06 - 31
CHS : 07 - 16
FV : 08 - 15
0 : 09 - 0
PMT : 10 - 14
RCL 0 : 11 - 45, 0
n : 12 - 11
PV : 13 - 13
GTO 00 : 14 - 43, 33, 00

Note: This is done on a "classic" HP 12C. With a HP 12C Platinum, use RPN mode and replace GTO 00 with GTO 000.

Example:
An annuity that will pay $2,000 a month for 324 months (27 years) will be paid 312 months (26 years) from now. Assume an annual discount rate of 5.5% (periodic rate of about 0.4583%). Steps: 324 STO 0 312 STO 1 5.5 g 12÷ 3000 PMT R/S: Result: -505,785.53 R/S: Result: -121,435.08 The annuity needs to be funded with$121,435.08 in order to meet the required payment structures 26 years from now.
06-26-2016, 09:33 PM
Post: #2
 bshoring Member Posts: 266 Joined: Dec 2013
RE: Deferred Monthly Annuity for the HP 12C
Hi Eddie,

Thanks for posting this useful program. A bit late for me as I'm already retired, but I'm happy to get it and use it nonetheless.

I think for the example you gave the 324 and 312 should be reversed. When I first tried it, I got different results, but when I put 312 in R0 & 324 in R1, I got the correct result, as long as the calculator is in "END" mode.

Regards,
Bob
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