HP 12C CALCULATOR BASICS

DIFFERENCES 12C & REG. CALCULATOR Note there is no = sign on the HP 12C calculator. This is because it is Reverse Polish Notation (RPN). RPN is a mathematical notation in which every operator follows all of its operands. Basically you have to think somewhat in reverse of what is normal. There is no = sign, the last entry will result in an answer in the display.

Is Learning HP 12C Worth It? It depends. Most older professional appraisers use this calculator. Newer WSU Real Estate majors, were taught using TI BAII. People have passed this class with a normal calculator, but an HP 12C is much easier when you get to advanced problems and the instructor will be using the HP 12C.

Ex. Cash Equivalency with Balloon Buyer A purchased a property for $120,000, and assumed a mortgage that was 80% of the purchase price with 20 years remaining at 3% and 7- year balloon. The market rate is 80% LTV, 20 years, 7.5%, 7-year balloon ($99,421 Cash Equiv.)

IMPORTANT KEYS - Clearing Good practice to always clear calculator at start of every problem. To Clear – or Hit, then hit do same for

IMPORTANT KEYS ENTER 1) Enter – Used at the beginning of simple calculations. Example 1 Enter will give a display of 6

IMPORTANT KEYS - Memory Use Numbers 1 through 9 to store numbers. Example: Store 430 in Register To Recall 1 Display

CHANGING DECIMALS 1 Decimal 1 2 Decimals 2 Etc. etc. 8 Clear Screen

Other Odds & Ends The HP is programmed so that if the PV is + then FV is displayed as – and visa versa, because the HP assumes that one is an inflow and other is an outflow. When entering both PV and FV, one must be entered as negative and other positive, or ignore the – sign. Also, I have several.pdfs from the Appraisal Institute, HP including the original owner’s manual with practice problems and instructions. To change display of numbers after decimal use and then press number like 2, 3, etc. for the numbers after the decimal.

BASICS – Addition, Subtraction, Division, Multiplication Clear Register Addition = Display is Clear Register Subtraction= Display is Clear Register Multiplication = 25 3 Display is Clear Register Division = 25 3 Display is

MY DEAR AUNT SALLY RULE REMEMBER “Please Excuse My Dear Aunt Sally” STILL APPLIES "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction". Do multiplication and division first, then addition and subtraction. Use the register to store and recall sets of numbers.

Examples of Mixed Problems

Practice Mixed Use Problems 1)(15 x 45) (12/3) + 18 = Solution:

Another Mixed Problem

Main Financial Buttons Note use button for top functions, for bottom functions, and none for figures in white

Mortgage Payment - Annual Ex. What is the annual payment for a 20-year loan of $1,280,000 at 7.5% using 1 payment per year.

Mortgage Payment - Monthly Ex. What is the annual payment for a 20-year loan of $1,280,000 at 7.5% paid on monthly basis.

NPV – Uneven Cash Flows Example: A property has the following income – Year 1 - $14,600, Year 2 - $15,100, Year 3 - $16,000, Year 4 - $17,200. The investor wants a 9% Yield Rate.

NPV – Uneven Cash Flows & Reversion Example: A property has the following income – Year 1 - $14,600, Year 2 - $15,100, Year 3 - $16,000, Year 4 - $17,200 along with $400,000 reversion. The investor wants a 9% Yield Rate.

MISC. ON ANDROID APP. – All Commas v

Cash Equivalency A recent $1,600,000 sale was seller financed at a rate of 7.5% for 20-years with a 80% loan ratio, monthly payments. What is cash equivalency if market rate is 9%? Note – Mo. Payment, Annual Loan or 12 PMTs Per Year Clear Register.80 1,600,000 Display Loan Amt. This Enters Loan Amount 20 For 12 Pmts in 20 years, 7.5 for interest Hit Display 9 Hit m PV =Loan 320,000 (cash) Gives Display