On the Casio MS-80TV calculator, how do you change the tax rate?

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• Casio Ms-80tv

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  Ok, I just figured it out. Hold down the "Set %" Button. Hold it until the screen appears with the word "SET" across the top and the number "0" in the display. From there, hit the "TAX+" button The screen will now say "TAX" "SET" "%" across the top, and the number displayed will be the current tax rate percentage. Input the new number you want as the tax percentage. Then click "SET %" and you should be all set