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Anuj Kundarap Posted on Nov 30, 2013
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My TI BA II Plus is returning incorrect answers for TVM problems... Is this common and can it be fixed?

N=1, I/Y=10, PV=-100, PMT=0 CPT FV=100.83333333333333 Clearly this is the wrong answer!! Please help!!!

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ankit saini

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  • Posted on Dec 22, 2018
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  • zeynullah gider
    zeynullah gider Aug 20, 2022

    Somehow you pushed "2nd" then "I/y" then P/Y comes , then you made it P/Y=12
    Now ?f you put those givens you will end with 100.83. However the correct answer is 110. Therefore you should fix it. Push 2nd then I/Y then made I/Y=1 then enter. Thats it. Now you will have correct answer.

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kakima

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  • Posted on Nov 30, 2013
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Let's see, 10% interest per year on $100 for one month. That's 10/12 of a percent interest on $100 is $0.83, added to $100 is $100.83 (with a bunch more 3s at the end). Clearly this is the correct answer.

What answer are you expecting? The future value at the end of one year instead of one month?

Testimonial: ":) Thank you.. I had to change my Periods per Year setting from 12 to 1 and that cleared my confusion. Got this from your solution on a past post. Keep up the good work Kakima! :)"

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Related Questions:

8helpful
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My BA II plus professional showing wrong answer while computing "N" during TVM calculation

Make sure you have P/Y set to 1 and BGN/END set to END. With those settings, pressing 9 I/Y 9 2 0 FV 1 0 0 +/- PMT CPT N should produce 7.00 .
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I would like some help in solving some TVM problems using the BA II Plus calculator. i.e. How to solve: I invested a lump sum of $2400 in an investment that returns 6% annually. How much will the...

2nd [CLR TVM] (clear TVM registers)

2 4 0 0 +/- PV ($2400 initial investment, negative because you're paying it out)

6 I/Y (6% annual interest)

1 N (one year)

CPT FV (compute future value, see 2544.00, the value after one year)

5 N (five years)

CPT FV (see 3211.74, the value after five years)

1 0 N (ten years)

CPT FV (see 4298.03, the value after ten years)
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My TI BA II Plus is returning incorrect answers for TVM problems... Is this common and can it be fixed?

It's more common that one of the settings is not correct. Check the BEGIN/END setting, the number of payments per year, and the number of compounding periods per year.

If you still have problems, please give an example of a TVM problem, with your results and the correct result. Simply saying "incorrect results" doesn't let anyone help you.
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Im am baffled. my ba-II plus is not calculating TVM correctly. ive tried resetting, making sure end period was selected (i.e. ordinary annuity) but no luck. as an example i enter... n=1, i=10, pv=-1,...

It's giving you the correct answer for the problem you've input. When you specified 1 for n, you told it one month. If you specify more digits, you'll see that the answer is 1.00833333.

By default, the calculator works with annual interest rates but counts periods in months.
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My TI BA ii plus calculator is calculating the incorrect answer for a TVM problem. What is wrong?

Before each calculation of a TVM problem you must fully clear the calculator ... Press [2ND] [CPT] [2ND] [FV]

Best of luck
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Computing N in a TVM calculation (receive Error 5 message)

Hey,
Just found out the answer!
Apparently you can't have both FV and PV positive. Try the calculation with one of them being negative.

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Simple loan payment

Are you putting 30x12=360 for N? Since you have monthly payments, you have to compute it a little different. Also, you have to find the effective monthly interest rate. 1.0575^(1/12) = .4669839%.

Another way is to enter 30 for N and 5.57 for I/Y, and change P/Y to 12.

Hope this helps!
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Finding N value on Ba11 PLUS

You need to have your PV and your PMT be a different sign. Try making your payments negative.
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