Calculator keys

Key	Function
	Clear key: clearing all calculating registers, except for the memory register.
	Clear entry key: clear the immediate entry (only)
	Delta percentage key: obtain an increase or decrease ratio (change in percentages). For example, sales for last year were $10,000. And for this year they are $12,000. Using this key, you can determine that there was a 20% increase in sales.
	Division key
	Decimal point key
	Hash key: non-add key, used to print numbers not part of the calculation. The diamond key displays subtotals
	Konstant key, used for performing multiplication and division by a constant number. With multiplication the first number is the constant. with division the second number is the constant.
	Memory plus equal key: used for obtaining a calculation result (for multiplication and division only) and adding the result automatically to memory. This key is also used to add a number directly to memory.
	Memory minus equal key (yellow): Used for obtaining a result (for multiplication and division only) and subtracting the result automatically from memory. When a negative number Is entered in minus memory, the result is a positive entry.
	Minus key
	Mark up/down: Used for performing mark up {profit) and mark down calculations.
	Paper feed
	Plus key
	Plus/minus key: Used for performing percentage calculations. Convenient for Add-on and Discount calculations. For example: 200 x 20% gives you 40.00, then if you press the “+” (plus key), you will get 240.00. This saves the time of having to manually add 40.00 to 200.00. The same works in reverse using the “-“ (minus key). 200 x 20% gives you 40.00, then press the “-“ (minus key), you will get 160.00.
	Memory subtotal key: Provides a temporary total for the contents of the memory.
	Total/equals key: Used to obtain a calculation result.
	Memory total key: Provides a Grand Total of what is in the memory.
	Multiply key
	Accumulation switch: When this switch is set at the AM position, entries or calculation results are automatically accumulated In the memory every time the”*/=” key is pressed (also known as summation).