Sharp QS-1760H Change Sign KEY, Multiple USE KEY, Square Root KEY, Tax-Including Key Pre-Tax Key

CHANGE SIGN KEY:

Changes the algebraic sign of a number (i.e., positive to negative or negative to positive).

MULTIPLE USE KEY:

Used to perform mark-ups, percent change and automatic add-on/discount.

SQUARE ROOT KEY:

To obtain a square root of a negative number, this calculator will first obtain a square root of an absolute number of the given number; the calculation result will then be converted to a negative value.

TAX-INCLUDING KEY

PRE-TAX KEY

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