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- Subject: Math Gods & lower Saints
- Message-ID: <1992Aug22.080051.15169@ecst.csuchico.edu>
- From: madams@ecst.csuchico.edu (Michael E. Adams)
- Date: Sat, 22 Aug 1992 08:00:51 GMT
- Sender: news@ecst.csuchico.edu (no news is good news)
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- Organization: California State University, Chico
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-
- Question: given Monthly_Payment, Length_of_loan (in months), and the
- Principal, what is the interest rate (compounded monthly)?
-
-
- Dear Math God:
- Do you have time to explain the solution of a small finance problem?
- I'm trying to write a Pascal program that has a loan computation section.
- There are lots of code examples for Amortization of a loan, and the normal
- "time value of money" functions, but I want to solve for the intrest rate also.
-
- Here is an example to expalin WHY I want to do this:
-
- Let's say a car dealer is trying to set the terms of a loan to sell a car.
- Given the following Information:
- ---------------------------------------
- (principal) 10000.00 Price set by owner
- (interest rate APR) 10.50 Bank + dealer rate
- (number of months) 36 Banks Max loan period
- (months between payments) 1
-
- (payment) 325.02 Amortization results
- (sum of interests) 1700.88
- ---------------------------------------
-
- The buyer says he likes the car, but can only make $300/month payments. Thus,
- the dealer has a problem: The bank won't let him extend the loan period,
- and the owners won't let him drop the price. The dealer CAN lower his
- portion of the interest rate, but how much should he lower it?
- ^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Thank you for you help.
- -Michael
-
- (___) | Michael E. Adams
- (o o) |
- /-------\ / | P.O. Box 5027
- / | ||O | Chico, California 95927-5025 U.S.A.
- * ||,---|| |
- ~~ ~~ | Internet: madams@cscihp.ecst.csuchico.edu
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