Sharp EL733A EL-733A Operation Manual - Page 28
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or 1% per month. With your calculator in FIN mode and your display set to 2ndF ED, here are the keystrokes. Make sure BGN is off: 300 11-/-I IFtfil 0f 1 co 4 2ndF [X-12f land Result: 11'392.19 Now how much more can you afford to borrow if you go for 5 year financing? Since you have the problem all keyed in, just change the one value (n) and recalculate PV: 5 2nd 1202J El COATI PV Result: 13'486.51 Example: You finally find a car that you like with a price tag of $23'000.00. You can expect to get about $3'600 trade in on your old car. What will your monthly payments be on a 5 year loan? Solution: Again, there's only one value (PV) that you need to change, and then you need to recalculate the payment. 23'000 Q 3600 E [Ey Result: -431.54 Example: You luck out and find some financing at 10.5% APR. How does that affect your payment? Solution: Just key in the new interest rate (make it a periodic rate) and then solve for the new payment. Here are the keystrokes: 10.5 Vdni-,121M MN nil Result: -416.98 Can your budget handle this slight extension for the car you want? No problem, right? You can see that the EL-733A is a handy tool to take with you whenever you are on the way to buy a car or to make some purchase that will involve financing. But we haven't yet covered all the aspects of TVM problems. We have only covered PMT and PV calculations to this point, and this is just a scratch on the surface of financial calculations. ALLOON PAYME TS AND ALCUL>ATIONS On the EL-733A, the future value ( Q ) is an amount left at the end of the cash-flow schedule that is separate from any regular payment that may occur at that same point. In the case of a balloon payment, which is a payment at the end of a loan contract that completely pays of the remaining balance, it is important to recognize that the result for FV may have to be added to a payment amount to determine the actual final payment amount on the loan. Example: As a construction engineer, you recently got a five year contract job in Utah overseeing the construction of a modern, clean, coal-fired power plant. You were able to purchase a nice house with a 15 year mortgage of $97'000.00 at an interest rate of 11.5% APR. However because your job is on a five year contract, a balloon payment is scheduled at the end of those five