{\rtf1\ansi\deff0{\fonttbl{\f0\fnil\fcharset0 Courier New;}} \viewkind4\uc1\pard\lang1033\f0\fs20 TI-83 PLUS Business Suite\par February 4, 2001\par by Edward Shore\par \par Email: eddieshore_77@yahoo.com\par \par Resources:\par \par Hall, Pamela L. "Effective Use of a Financial Calculator" The Dryden Press: Fort Worth 2000\par \par Texas Instruments (Various Authors) "BA-35 Guidebook", "BA II Plus Guidebook", "BA Real Estate Guidebook" Texas Instruments 1985, 1991, 1995\par \par ALL questions, complaints, compliments, reports of nasty bugs should be directed to my email address: eddieshore_77@yahoo.com\par \par Quick wish: The % and $ characters for the TI-83 Plus!\par \par Introduction: This program uses functions from the Finance Application to aide the user in answering common finance and accounting questions.\par \par Installation: Just send the BUSNSS83 program to your calculator through out the Graph Link. Have your calculator on home screen when you do this. This is a Basic program and requires no ASM kernels.\par This is a program for the TI-83 Plus. It should be able to be transferred to the old TI-83 without problems, but don't quote me on that.\par \par Size: 3422 bytes. Can be archived for future use if you wish.\par \par The Menus:\par \par 1. Inventory - Three Inventory Methods\par 2. Depreciation - Three Depreciation Methods\par 3. Cash Flow Analysis\par 4. Real Estate\par 5. Analysis (sort of miscellaneous)\par 6. Quit\par \par Inventory:\par \par 1. LIFO (Last-In-First-Out) Inventory Method. Calculates cost of goods sold by selling the most recent items bought first.\par \par 2. FIFO (First-In-First-Out) Inventory Method. Calculates cost of goods sold by selling the oldest items purchased first.\par \par 3. Weighted Average. Each time goods are purchased, the price of the goods are weighted and an average price is given for each item.\par \par Average price = Sum of (number of goods * purchase price) / total number of goods\par \par Each time these options are run, you are first asked to give the quantity and amount of the first purchase. Then you are given the option to either purchase more goods or sell them.\par \par Depreciation:\par \par When you hit this option, you are prompted to give the price and the life (in years) of the asset. Then you are given three methods:\par \par 1. SL (Striaght Line) Depreciation. Each year the same amount of depreciation is taken against the value of the asset. \par \par 2. SYD (Sum-of-the-Years'-Digit) Depreciation. An accelerated method of depreciation, the each year the value of the asset is deprecated by a fraction of the sum of the years.\par \par Deprecation = (Value - Salvage Value) * Year / Sum of the Years' Digits \par \par (i.e. for a 3 year asset, the denominator would be 1 + 2 + 3 = 6)\par \par Each of the two options will let you enter a salvage (residual) value.\par \par 3. DB (Declining Balance) Deprecation. Another accelerate method. Instead of entering a salvage value, you enter the percentage of how much the asset depreciates. \par \par For Double Declining Balance, enter 200 for the rate.\par \par Depreciation = Book Value * Rate % / Life\par \par Cash Flows:\par \par Here, you enter:\par * the intial cash flow of the project.\par * a list of the future cash flows projected for the project. Use brackets \{ \}.\par and\par * the required rate of return, enter as an integer (i.e. for 12%, enter 12)\par \par Note: An outflow (cash payment) is negative. At least one of signs of the flows must be different (i.e. 12 inflows to at least 1 outflow) or a "No Change Sign" error occurs.\par \par The results:\par 1. NPV (Net Present Value): the present value of all cash flows of a project at a given required rate of return. If NPV is greater than zero, than the project is a profitable investment.\par 2. IRR (Internal Rate of Return): the rate given if the present value of cash flows equals 0. If IRR is greater than the required rate of return, than the project is a profitable investment. Note the program returns the rate closest to 0%.\par 3. MIRR (Modified Internal Rate of Return): The modified internal rate of return assumes that the flows will be reinvested at IRR and matching the rate that equals the present value ot its cash flows' future value, invested at IRR.\par 4. EAA (Equivalent Annual Annuity): Gives the period payment required to match a project's NPV. Good for comparing two investment projects with different lives.\par \par Real Estate:\par 1. PITI (Principal Interest Taxes and Insurance Payment): payment required to pay an escrow including the annual property tax and insurance rates.\par 2. Maximum Debt Allowed: Calculates the maximum amount of debt allowed for a prospective buyer, factoring the term of the loan, its interest rate, the annual property tax and insurance rates. Enter all rates as integers (i.e. enter 12% as 12). This is one of the tools used to "qualify" a prospective buyer of real estate, to determine if the buyer will be able to pay off the loan. \par 3. Effective Rate: Takes the rate of a loan and gives the effective rate. This is used to calculated different loans or annuities with different terms. Compouding periods: Enter 1 for annually, 2 for semi-annually, 4 for quarterly, 12 for monthly.\par \par Analysis:\par 1. Bonds: Calculate the yield or price of a bond. Enter rates as integers (i.e. enter 12% as 12). Par value (future value) of a bond is assumed to be $1,000.\par 2. Payment Schedule: Enter the terms of a loan; such as number of years of the loan, interest rate, and the amount of the loan. The option assumes payments will be made monthly. This option creates three equations:\par y1 = Principal taken each payment\par y2 = Interest taken each payment\par y3 = Balance of loan after the payment \par x= Payment number\par This option automatically turn the calcualtor to Func mode.\par 3. Credit Card What-If? (something I should use more often!): This planning tool allows you to schedule either 3, 6, or 12 months for planned purchases and payments. For now, this assumes that there are no late payments nor credit limits. Can be a real eye-opener.\par \par This program uses the single variables A (for last answer), equations y1, y2, y3, lists L1, L2, L3, L4, and matrix [A]. The program is 3,422 bytes.\par \par Thanks for trying this program! I hope you find it enjoyable. :)\par \par Eddie Shore\par eddieshore_77@yahoo.com\par }