Question about Casio MS-80TV Scientific Calculator

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Casio calculator MS-8TV

I am trying to do a normal calculation using the percentage button but this keeps giving me the tax how do i turn this function off?

Posted by jayney allery on

  • 3 more comments 
  • Anonymous Jan 11, 2008

    There is no other button to hold down to get the % button to work. It does have a dual function, it says RATE SET above the % sign.



    Not sure how to get the % button to actually work, very frustrating!!

  • lleld Jan 27, 2008

    I can't seem to calculate simple percentages. I don't want to set a permanent tax rate... just want to calculate varying percentages. Anyone know how to do this?

  • MeMaw1961 Mar 12, 2008

    change tax rate

  • Anonymous Aug 07, 2008

    I have lost my instructions on how to change my tax rate on my Casio MS-8TV, can you help?

  • Anonymous Aug 22, 2008

    just want to calculate varying percentages

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5 Answers

1badengineer

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SETTING YOUR TAX RATE
you hold your set % button down for three seconds until set shows again, then hit tax rate button it shows your tax rate, change your tax rate then hit set your tax rate should be set.



cliff notes:
hold set% button
hit tax+ button
change the desired %
hit set done

Posted on Jan 11, 2008

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Anonymous

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For normal % calculations, it works as follows:

100 x 5 % . . . the display should read 5

100 x 5 % + . . . the display should read 105 which is 5 added to 100

100 x 5 % - . . . the display should read 95 which is 5 subtracted from 100

The SET/% key is indeed dual function although SET isn't initiated until the button is pressed AND held down for a few seconds. When that is occurring, you display should be blank for those few seconds after which SET will be indicated on the display indicating it is ready for input.

otherwise, . . .

Make sure you are not in the SET mode. The display should be clear with nothing but 0 showing. You might also want to press AC before beginning calculations.

Posted on Jan 29, 2008

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Anonymous

HOW DO I SET THE TAX RATE?

Posted on Jan 07, 2008

Anonymous

Helpful thank u

Posted on Apr 07, 2008

john archer

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It sounds like the Percent key has a dual function. Thee should be a way to toggle the feature by either holding a function or 2nd key then pressing the percent key. Good luck. John

Posted on Jun 16, 2007

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Simple way Amount/Total*100

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1 Answer

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