_  __   _  _         _ _     _      _           _           
  __| |/ /_ | || |     __| (_)___| | __ (_)_ __   __| | _____  __
 / _` | '_ \| || |_   / _` | / __| |/ / | | '_ \ / _` |/ _ \ \/ /
| (_| | (_) |__   _| | (_| | \__ \   <  | | | | | (_| |  __/>  < 
 \__,_|\___/   |_|    \__,_|_|___/_|\_\ |_|_| |_|\__,_|\___/_/\_\
                                                                 
            

T.INVESTOR

FILE INFORMATION

FILENAME(S): T.INVESTOR

FILE TYPE(S): PRG

FILE SIZE: 4.8K

FIRST SEEN: 2025-11-30 18:12:07

APPEARS ON: 1 disk(s)

FILE HASH

cbbf949a1679cb61fe409a99e034008f4865cf65933aca2d889c66796c7fb032

FOUND ON DISKS (1 DISKS)

DISK TITLE FILENAME FILE TYPE COLLECTION TRACK SECTOR ACTIONS
LOADSTAR 64 S 1 T.INVESTOR PRG Sailor, Ganheden 21 15 DOWNLOAD FILE

FILE CONTENT & ANALYSIS

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00000C70: 20 46 4F 52 20 46 4F 55  52 20 59 45 41 52 53 2E  | FOR FOUR YEARS.|
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00000D50: 38 2E 39 31 2E 20 20 CC  45 54 27 53 20 46 55 52  |8.91.  .ET'S FUR|
00000D60: 54 48 45 52 0D 43 4F 4D  50 4C 49 43 41 54 45 20  |THER.COMPLICATE |
00000D70: 54 48 49 53 20 49 53 53  55 45 20 41 4E 44 20 41  |THIS ISSUE AND A|
00000D80: 53 53 55 4D 45 20 59 4F  55 0D 41 4C 52 45 41 44  |SSUME YOU.ALREAD|
00000D90: 59 20 48 41 56 45 20 24  31 30 2C 30 30 30 2E 20  |Y HAVE $10,000. |
00000DA0: 20 CE 4F 57 20 48 4F 57  20 4D 55 43 48 20 44 4F  | .OW HOW MUCH DO|
00000DB0: 0D 59 4F 55 20 4E 45 45  44 20 54 4F 20 53 41 56  |.YOU NEED TO SAV|
00000DC0: 45 20 45 41 43 48 20 4D  4F 4E 54 48 3F 20 20 C1  |E EACH MONTH?  .|
00000DD0: 20 53 49 4E 47 4C 45 0D  50 41 59 4D 45 4E 54 20  | SINGLE.PAYMENT |
00000DE0: 49 4E 56 45 53 54 4D 45  4E 54 20 4F 46 20 24 31  |INVESTMENT OF $1|
00000DF0: 30 2C 30 30 30 20 46 4F  52 20 31 35 0D 59 45 41  |0,000 FOR 15.YEA|
00000E00: 52 53 20 41 54 20 38 25  20 57 49 4C 4C 20 59 49  |RS AT 8% WILL YI|
00000E10: 45 4C 44 20 24 33 32 2C  34 33 34 2E 20 20 D4 48  |ELD $32,434.  .H|
00000E20: 45 0D 52 45 4D 41 49 4E  49 4E 47 20 24 32 37 2C  |E.REMAINING $27,|
00000E30: 35 36 36 20 57 49 4C 4C  20 52 45 51 55 49 52 45  |566 WILL REQUIRE|
00000E40: 20 41 0D 4D 4F 4E 54 48  4C 59 20 49 4E 56 45 53  | A.MONTHLY INVES|
00000E50: 54 4D 45 4E 54 20 4F 46  20 24 37 39 2E 31 33 20  |TMENT OF $79.13 |
00000E60: 57 49 54 48 20 41 0D 59  49 45 4C 44 20 52 41 54  |WITH A.YIELD RAT|
00000E70: 45 20 4F 46 20 38 25 2E  0D 0D 20 20 20 20 C6 4F  |E OF 8%...    .O|
00000E80: 52 20 41 4C 4D 4F 53 54  20 41 4E 59 20 49 4E 56  |R ALMOST ANY INV|
00000E90: 45 53 54 4D 45 4E 54 0D  4F 50 50 4F 52 54 55 4E  |ESTMENT.OPPORTUN|
00000EA0: 49 54 59 20 59 4F 55 20  4E 45 45 44 20 54 4F 20  |ITY YOU NEED TO |
00000EB0: 41 53 4B 20 59 4F 55 52  53 45 4C 46 3A 0D 0D 20  |ASK YOURSELF:.. |
00000EC0: 2D 2D 20 C8 4F 57 20 4D  55 43 48 20 44 4F 20 C9  |-- .OW MUCH DO .|
00000ED0: 20 4E 45 45 44 3F 0D 20  2D 2D 20 C8 4F 57 20 4D  | NEED?. -- .OW M|
00000EE0: 55 43 48 20 44 4F 20 C9  20 43 55 52 52 45 4E 54  |UCH DO . CURRENT|
00000EF0: 4C 59 20 48 41 56 45 3F  0D 20 2D 2D 20 D7 48 41  |LY HAVE?. -- .HA|
00000F00: 54 20 57 49 4C 4C 20 54  48 45 20 43 55 52 52 45  |T WILL THE CURRE|
00000F10: 4E 54 20 48 4F 4C 44 49  4E 47 53 0D 20 20 20 20  |NT HOLDINGS.    |
00000F20: 20 47 52 4F 57 20 54 4F  20 42 45 43 4F 4D 45 3F  | GROW TO BECOME?|
00000F30: 0D 20 2D 2D 20 C1 4E 44  2C 20 48 4F 57 20 4D 55  |. -- .ND, HOW MU|
00000F40: 43 48 20 44 4F 20 C9 20  48 41 56 45 20 54 4F 20  |CH DO . HAVE TO |
00000F50: 53 41 56 45 0D 20 20 20  20 20 50 45 52 49 4F 44  |SAVE.     PERIOD|
00000F60: 49 43 41 4C 4C 59 20 54  4F 20 4D 41 4B 45 20 55  |ICALLY TO MAKE U|
00000F70: 50 20 54 48 45 0D 20 20  20 20 20 53 48 4F 52 54  |P THE.     SHORT|
00000F80: 46 41 4C 4C 3F 0D 0D 20  20 20 20 C1 46 54 45 52  |FALL?..    .FTER|
00000F90: 20 59 4F 55 20 48 41 56  45 20 44 45 54 45 52 4D  | YOU HAVE DETERM|
00000FA0: 49 4E 45 44 20 48 4F 57  20 4D 55 43 48 0D 59 4F  |INED HOW MUCH.YO|
00000FB0: 55 52 20 53 41 56 49 4E  47 53 20 57 49 4C 4C 20  |UR SAVINGS WILL |
00000FC0: 41 43 43 55 4D 55 4C 41  54 45 20 54 4F 0D 42 45  |ACCUMULATE TO.BE|
00000FD0: 43 4F 4D 45 2C 20 59 4F  55 20 43 41 4E 20 55 53  |COME, YOU CAN US|
00000FE0: 45 20 54 48 45 20 CC 45  4E 44 45 52 27 53 0D C6  |E THE .ENDER'S..|
00000FF0: 4F 52 4D 55 4C 41 20 54  4F 20 44 45 54 45 52 4D  |ORMULA TO DETERM|
00001000: 49 4E 45 20 48 4F 57 20  4C 4F 4E 47 20 49 54 20  |INE HOW LONG IT |
00001010: 57 49 4C 4C 0D 4C 41 53  54 2E 0D 0D 0D 0D 20 20  |WILL.LAST.....  |
00001020: 20 20 D4 48 45 20 D2 55  4E 20 C9 54 20 41 53 53  |  .HE .UN .T ASS|
00001030: 4F 43 49 41 54 45 44 20  57 49 54 48 20 54 48 49  |OCIATED WITH THI|
00001040: 53 0D 41 52 54 49 43 4C  45 20 49 53 20 41 20 53  |S.ARTICLE IS A S|
00001050: 49 4D 50 4C 45 20 4D 4F  44 45 4C 20 55 53 49 4E  |IMPLE MODEL USIN|
00001060: 47 20 54 48 45 0D 55 53  49 4E 47 20 42 4F 54 48  |G THE.USING BOTH|
00001070: 20 54 48 45 20 43 4F 4D  50 4F 55 4E 44 20 53 49  | THE COMPOUND SI|
00001080: 4D 50 4C 45 0D 49 4E 54  45 52 45 53 54 20 41 4E  |MPLE.INTEREST AN|
00001090: 44 20 41 4E 4E 55 49 54  59 20 46 4F 52 4D 55 4C  |D ANNUITY FORMUL|
000010A0: 41 53 2E 20 20 D9 4F 55  0D 46 49 52 53 54 20 43  |AS.  .OU.FIRST C|
000010B0: 48 4F 4F 53 45 20 57 48  49 43 48 20 4F 46 20 54  |HOOSE WHICH OF T|
000010C0: 48 45 20 54 57 4F 0D 46  4F 52 4D 55 4C 41 53 20  |HE TWO.FORMULAS |
000010D0: 59 4F 55 20 57 41 4E 54  20 54 4F 20 55 53 45 2C  |YOU WANT TO USE,|
000010E0: 20 54 48 45 4E 20 53 54  41 52 54 0D 50 4C 55 47  | THEN START.PLUG|
000010F0: 47 49 4E 47 20 49 4E 20  4E 55 4D 42 45 52 53 2E  |GING IN NUMBERS.|
00001100: 20 20 C1 53 20 57 49 54  48 20 54 48 45 0D CC 45  |  .S WITH THE..E|
00001110: 4E 44 45 52 27 53 20 C6  4F 52 4D 55 4C 41 2C 20  |NDER'S .ORMULA, |
00001120: 59 4F 55 20 43 41 4E 20  50 52 45 53 53 20 27 2A  |YOU CAN PRESS '*|
00001130: 27 0D 41 4E 44 20 54 48  45 20 46 49 47 55 52 45  |'.AND THE FIGURE|
00001140: 53 20 59 4F 55 20 45 4E  54 45 52 45 44 20 49 4E  |S YOU ENTERED IN|
00001150: 20 54 48 45 0D 50 52 45  43 45 44 49 4E 47 20 52  | THE.PRECEDING R|
00001160: 55 4E 2D 54 48 52 4F 55  47 48 20 57 49 4C 4C 20  |UN-THROUGH WILL |
00001170: 42 45 0D 41 55 54 4F 4D  41 54 49 43 41 4C 4C 59  |BE.AUTOMATICALLY|
00001180: 20 45 4E 54 45 52 45 44  20 46 4F 52 20 59 4F 55  | ENTERED FOR YOU|
00001190: 2E 20 20 D4 48 49 53 0D  4D 41 4B 45 53 20 49 54  |.  .HIS.MAKES IT|
000011A0: 20 45 41 53 59 20 54 4F  20 27 54 57 45 41 4B 27  | EASY TO 'TWEAK'|
000011B0: 20 54 48 45 20 46 49 47  55 52 45 53 0D 54 4F 20  | THE FIGURES.TO |
000011C0: 53 45 45 20 48 4F 57 20  45 41 43 48 20 56 41 52  |SEE HOW EACH VAR|
000011D0: 49 41 42 4C 45 20 41 46  46 45 43 54 53 20 54 48  |IABLE AFFECTS TH|
000011E0: 45 0D 4F 55 54 43 4F 4D  45 2E 0D 0D 0D 0D 0D 0D  |E.OUTCOME.......|
000011F0: 20 20 20 20 C9 46 20 59  4F 55 20 41 52 45 20 4C  |    .F YOU ARE L|
00001200: 45 4E 44 49 4E 47 2C 20  49 4E 56 45 53 54 49 4E  |ENDING, INVESTIN|
00001210: 47 20 4F 52 0D 57 52 49  54 49 4E 47 20 41 20 50  |G OR.WRITING A P|
00001220: 52 4F 47 52 41 4D 20 54  48 41 54 20 54 41 4B 45  |ROGRAM THAT TAKE|
00001230: 53 20 54 48 45 0D 44 52  55 44 47 45 57 4F 52 4B  |S THE.DRUDGEWORK|
00001240: 20 4F 55 54 20 4F 46 20  46 49 4E 41 4E 43 49 41  | OUT OF FINANCIA|
00001250: 4C 0D 43 41 4C 43 55 4C  41 54 49 4F 4E 53 2C 20  |L.CALCULATIONS, |
00001260: 59 4F 55 27 4C 4C 20 57  41 4E 54 20 54 4F 20 43  |YOU'LL WANT TO C|
00001270: 48 45 43 4B 0D 4F 55 54  20 54 48 45 53 45 20 54  |HECK.OUT THESE T|
00001280: 57 4F 20 41 52 54 49 43  4C 45 53 20 41 4E 44 20  |WO ARTICLES AND |
00001290: 50 52 4F 47 52 41 4D 53  2E 0D D4 48 45 52 45 27  |PROGRAMS...HERE'|
000012A0: 53 20 41 20 53 55 43 4B  45 52 20 42 4F 52 4E 20  |S A SUCKER BORN |
000012B0: 45 56 45 52 59 20 4D 49  4E 55 54 45 2C 0D 42 55  |EVERY MINUTE,.BU|
000012C0: 54 20 54 48 45 52 45 27  53 20 4E 4F 20 52 45 41  |T THERE'S NO REA|
000012D0: 53 4F 4E 20 57 48 59 20  49 54 20 48 41 53 20 54  |SON WHY IT HAS T|
000012E0: 4F 0D 42 45 20 59 4F 55  2E 0D 0D 20 20 20 20 20  |O.BE YOU...     |
000012F0: 20 20 20 2A 2A 2A 2A 20  C5 4E 44 20 4F 46 20 D4  |   **** .ND OF .|
00001300: 45 58 54 20 2A 2A 2A 2A  0D                       |EXT ****.       |
..^U:ZERO.    BYTES: THE INVESTOR'S FORM
ULA..         BY MARTY MATTHEWS..    LAS
T MONTH I PRESENTED THE.LENDER'S FORMULA
 WHICH CALCULATED HOW.MUCH YOU'D PAY BAC
K IF YOU BORROWED.MONEY.  THIS MONTH I'M
 PRESENTING THE.INVESTOR'S FORMULA, WHIC
H WILL.CALCULATE HOW MUCH YOU'LL COLLECT
 IF.YOU LOAN MONEY.  IT ALSO SHOWS A FEW
.OTHER THINGS, AS YOU'LL SEE...    THERE
 IS A RUN IT PROGRAM WHICH.LETS YOU PLAY
 "WHAT IF..." WITH.FIGURES.  FIRST I'LL 
EXPLAIN HOW THE.PROGRAM WORKS, THEN I'LL
 DISCUSS HOW.YOU CAN USE THE PROGRAM ITS
ELF....    THERE ARE TWO FORMULAS; ONE F
OR A.SINGLE PAYMENT ACCUMULATION AND ONE
.FOR THE PERIODIC INVESTMENT OF A.FIXED 
AMOUNT. THE FIRST FORMULA IS.THE "AMOUNT
 AT COMPOUND INTEREST",.AND THE SECOND I
S THE "AMOUNT OF AN.ANNUITY"...    THE F
ORMULA FOR COMPOUND INTEREST.LOOKS LIKE 
THIS:..  T = A * ((1 + R/Q) ^ (Y*Q))..AN
D, THE FORMULA FOR THE AMOUNT OF AN.ANNU
ITY LOOKS LIKE THIS:..  T = A * ((((1 + 
R/Q) ^ (Y*Q + 1)).         - 1) / (R/Q) 
- 1)..    T IS THE TOTAL AMOUNT.    A IS
 EITHER THE SINGLE PAYMENT OR.          
EACH PERIODIC PAYMENT,.    Y IS THE NUMB
ER OF YEARS,.    R IS THE INTEREST RATE 
PER YEAR,.    Q IS THE NUMBER OF PAYMENT
S OR.          COMPOUNDINGS PER YEAR... 
   THE SOLUTION WITH RESPECT TO T OR.A I
S RELATIVELY SIMPLE IF WE HAVE ALL.THE O
THER VARIABLES.  THE FORMULAS AS.THEY AP
PEAR ABOVE WILL PRODUCE T.  TO.CALCULATE
 A, INSTEAD OF MULTIPLYING.THE REST OF T
HE RIGHT HAND SIDE OF.THE EQUATION BY A,
 DIVIDE IT INTO T..IN THE FILE, "BYTES",
 THE RIGHT SIDE.OF THE EQUATION IS CALCU
LATED IN LINES.905 AND 908, AND CALLED X
1...    R, THE RATE OF INTEREST, AND Y,.
THE NUMBER OF YEARS, ARE MORE.COMPLICATE
D TO CALCULATE.  WE HAVE TO.USE THE TRAD
ITIONAL "SPLIT-THE-.DIFFERENCE" METHOD (
AS DESCRIBED IN.LAST MONTH'S COLUMN).  T
HE.CALCULATION FOR R IS FOUND IN LINES.6
00 THROUGH 690, AND THE CALCULATION.FOR 
Y IS IN LINES 500 THROUGH 590..THE SUBRO
UTINE IN BOTH SITUATIONS.STARTS WITH AN 
ESTIMATE, CALCULATES,.THEN DIVIDES THE D
IFFERENCE BY TWO.UNTIL THE DIFFERENCE IS
 LESS THAN THE.TOLERANCE ALLOWED....... 
   BUT WHAT DOES THE INVESTOR.FORMULA TE
LL US?  IF YOU WANT AN EYE-.OPENING NUMB
ER, USE YOUR MORTGAGE.PAYMENT IN THE "AM
OUNT OF AN ANNUITY".FORMULA AND DETERMIN
E HOW MUCH YOU.CAN SAVE IF YOUR MORTGAGE
 WAS PAID.OFF AND YOU SAVED THE AMOUNT O
F THE.MORTGAGE PAYMENT.  FOR EXAMPLE, IF
.YOUR MORTGAGE PAYMENT IS $200 PER.MONTH
, AND YOU INVESTED THIS AMOUNT.EACH MONT
H FOR 25 YEARS AT 8%, AT THE.END OF 25 Y
EARS YOU WOULD HAVE.ACCUMULATED $191,473
.  MAKES YOU WISH.YOU COULD PAY OFF THAT
 MORTGAGE,.DOESN'T IT?.....    COMPOUNDI
NG IS ANOTHER IMPORTANT.FACTOR IN INVEST
ING.  SAY YOU HAVE.TWO INVESTMENT OPTION
S EACH AT $10,000.FOR FIVE YEARS.  THE F
IRST OPTION IS.10% COMPOUNDED ONCE EACH 
YEAR, AND,.THE OTHER IS AT 9.625% COMPOU
NDED EACH.MONTH.  WHICH WOULD YOU CHOOSE
?  THE.9.625% RATE COMPOUNDED MONTHLY WO
ULD.YIELD $16,149 IN FIVE YEARS WHILE TH
E.INVESTMENT AT 10% COMPOUNDED ANNUALLY.
WOULD YIELD ONLY $16,105.  WHEN THE.INVE
STMENT OPTIONS BECOME COMPLEX THE.BEST C
HOICE IS NOT ALWAYS OBVIOUS!......    HO
W ABOUT IF YOUR CHILD IS THREE.YEARS OLD
 AND IN FIFTEEN YEARS WILL.START COLLEGE
.  ESTIMATES FOR A.COLLEGE EDUCATION IN 
FIFTEEN YEARS IS.$60,000 FOR FOUR YEARS.
  HOW MUCH DO.YOU HAVE TO SAVE EACH MONT
H TO.ACCUMULATE $60,000 IN THE FIFTEEN.Y
EARS?  IF THE YIELD RATE IS 8%, YOU.WILL
 HAVE TO SAVE $172.25 EACH MONTH..WITH A
 YIELD RATE OF 12% THE MONTHLY.INVESTMEN
T IS $118.91.  LET'S FURTHER.COMPLICATE 
THIS ISSUE AND ASSUME YOU.ALREADY HAVE $
10,000.  NOW HOW MUCH DO.YOU NEED TO SAV
E EACH MONTH?  A SINGLE.PAYMENT INVESTME
NT OF $10,000 FOR 15.YEARS AT 8% WILL YI
ELD $32,434.  THE.REMAINING $27,566 WILL
 REQUIRE A.MONTHLY INVESTMENT OF $79.13 
WITH A.YIELD RATE OF 8%...    FOR ALMOST
 ANY INVESTMENT.OPPORTUNITY YOU NEED TO 
ASK YOURSELF:.. -- HOW MUCH DO I NEED?. 
-- HOW MUCH DO I CURRENTLY HAVE?. -- WHA
T WILL THE CURRENT HOLDINGS.     GROW TO
 BECOME?. -- AND, HOW MUCH DO I HAVE TO 
SAVE.     PERIODICALLY TO MAKE UP THE.  
   SHORTFALL?..    AFTER YOU HAVE DETERM
INED HOW MUCH.YOUR SAVINGS WILL ACCUMULA
TE TO.BECOME, YOU CAN USE THE LENDER'S.F
ORMULA TO DETERMINE HOW LONG IT WILL.LAS
T.....    THE RUN IT ASSOCIATED WITH THI
S.ARTICLE IS A SIMPLE MODEL USING THE.US
ING BOTH THE COMPOUND SIMPLE.INTEREST AN
D ANNUITY FORMULAS.  YOU.FIRST CHOOSE WH
ICH OF THE TWO.FORMULAS YOU WANT TO USE,
 THEN START.PLUGGING IN NUMBERS.  AS WIT
H THE.LENDER'S FORMULA, YOU CAN PRESS '*
'.AND THE FIGURES YOU ENTERED IN THE.PRE
CEDING RUN-THROUGH WILL BE.AUTOMATICALLY
 ENTERED FOR YOU.  THIS.MAKES IT EASY TO
 'TWEAK' THE FIGURES.TO SEE HOW EACH VAR
IABLE AFFECTS THE.OUTCOME.......    IF Y
OU ARE LENDING, INVESTING OR.WRITING A P
ROGRAM THAT TAKES THE.DRUDGEWORK OUT OF 
FINANCIAL.CALCULATIONS, YOU'LL WANT TO C
HECK.OUT THESE TWO ARTICLES AND PROGRAMS
..THERE'S A SUCKER BORN EVERY MINUTE,.BU
T THERE'S NO REASON WHY IT HAS TO.BE YOU
...        **** END OF TEXT ****.
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