Question about Texas Instruments TI-83 Plus Calculator

# How do you calculate percentages on the TI 83 Plus?

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Sorry, but you cannot calculate percentages at the pressing of a key. The calculator does not have a key for that. You will have to do it yourself.
To convert a decimal result to a percentage, multiply it by 100: MOVE the decimal mark two places to the right.
To convert a percentage into a decimal number, divide the number by 100: MOVE the decimal mark two places to the left.

Posted on Aug 22, 2010

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Posted on Jan 02, 2017

As battery gets drained, the screen contrast dims. But when you change batteries, some times the contrast is reset to some low value and the screen appears dead: it is so light that you do not see anything, and you think the calculator is malfunctioning. This is the most frequent reason users think the calculator refuses to turn ON. And I hope that is the case now.
To correct that, you must increase screen contrast: draken the screen a bit. To do so

1. press [2nd] key and release it.
2. Press the Up arrow and HOLD pressure.
3. Keep pressing the arrow key until screen is dark enough.
If that solve your problem that is good, rate the post accordingly.. If that does not, do not get irate and berate the post. Post a comment here describing what you did and what message (if any) calculator returned, and I will give you further diagnostic steps.

Posted on Jan 21, 2010

Just hit the 2ND key and the 0 (catalog key)scroll down to percentage or just divide the answer by 100.

Posted on Feb 13, 2009

Use a paperclip (tiny hole on back of caculator) and reset.

JC

Posted on Sep 20, 2008

That means that you know your calc crashed. This can be caused by taking out the batteries durring running time, happened just randomly. Well nothing to fear just press clear and it should go away but if it stays on that screen you have problems and is best to try some of these methods. Take out all the bateries and press and hold the on button for 30 seconds. Put the batteries back in and it should have reset. Warning you should archive everything incase this happens. To archive go to 2nd mem and hit enter to put a astrick next to the app (meaning archived)

Posted on Sep 16, 2008

how do i find the anilog on my calculator i have a texas instrument ti-30

Posted on Oct 15, 2008

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## Related Questions:

### Wha is a percentage number of another of another

Hmmm. Could you give more details? Are you wanting to find a percentage? If so, here's an example - 10% of 100 is 10.
Multiply 100 by .10 = 10.

So to find the percentage of a number, multiply the number in question by the decimal version of the percentage. 8% is .08, 15% is .15, etc.

I hope that helps!

Jul 08, 2014 | Texas Instruments TI-83 Plus Calculator

### Equations

You can't simply enter 7x+9=30 into the calculator, there is a way to calculate what the x is but its been a few years since I've done these..

Oct 03, 2008 | Texas Instruments TI-83 Plus Calculator

### TI-83 Plus "waiting ...please install message then "error message

Please Install Calculator Software Now error
This message means that the operating system has been corrupted. These steps will allow you to update the OS.

Unit to Unit
• Connect two TI-83 Plus units by means of the data cable (short black cable that was prepackaged with the TI-83 Plus)
• Make sure that at least one of the TI-83 Pluses contains the current Operating System
• Make sure that the other unit still reads "Waiting Please Install"

From the Computer
• Make sure you have the latest version of the TI Connect™ Software
• Connect the appropriate TI-GRAPH LINK™ cable between the PC and TI-83 Plus.
• Since the TI-83 Plus is currently off, the TI-83 Plus will automatically turn on when the TI-GRAPH LINK Cable is inserted.

Dec 10, 2007 | Texas Instruments TI-83 Plus Calculator

### What is the percentage of absentee owners, it 202 owners are non absentee and 67 are absentee owners

You would divide 67 by 269, and the correct percentage is 24.9%, rounded off to one decimal place. In essence, you divide the absentee number by the total number of owners, then multiply the answer by 100 to get the percentage.
Good luck, and hope this helps.

May 27, 2011 | Texas Instruments TI-83 Plus Calculator

### Increase percentage of 70 to 200

A percentage increase from a value a to a value b is defined as
Percent increase=(b-a)/a*100 percent.
In your case it is (200-70)/70=1.857. Multiply this number by 100 and append the percent symbol. Thus increase=185.7 percent or about 186 percent.

May 05, 2011 | Texas Instruments TI-83 Plus Calculator

### TI-83 Plus will not let me view a table

Hello,
I have just done what you said you had done, but I got a nice, correct table of values. You might have discoverd a secret command to clear memory.

Cheers.

Apr 14, 2009 | Texas Instruments TI-83 Plus Calculator

### Instructions And Usage Of TI-83 Plus Calculator

Mar 11, 2009 | Texas Instruments TI-83 Plus Calculator

### TI-83 plus calcutor I need instruction manual

Could you please download the TI-83 Plus instructions to gobucks290@yahoo.com so I can understand what to do on the calculator.

Thank-you

Donna

Jun 25, 2008 | Texas Instruments TI-83 Plus Calculator

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