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% Percentage

This function simplifies the calculation of percentages. It is unique in algebraic modes as it determines which parameters it needs according to the prior input. If used in conjunction with an addition or subtraction, it is binary insofar as accepting two input values, otherwise it is postfix unary and acts simply to divide the value by 100.

Example: What is 315 plus 17%?

315 [+] 17 [%]
[ENTER]
Displays: 368.55

In the above example, the % function takes the value prior to the + operator as input as well as the value immediately before it.

In the following examples, % simply divides the value by 100.

Example: What is 19% of 200?

200 [×] 19 [%]
[ENTER]
Displays: 38

Example: What percentage of 543 equals 27?

27 [÷] 543 [%]
[ENTER]
Displays: 4.972...

In RPN mode, the percentage function is always binary—acting between the X and Y registers.

COST

The three functions: COST, MAR% and SELL are available in the Simple Calculator view only and work together as a "register functions" to calculate cost, percentage margin and selling price. Simply enter two known values into the registers, and press the remaining function for calculation of the unknown.

Example: If you sell a product at $69.99, what must it cost if you wish to make a profit margin of 11%?

69.99 [SELL]
11 [MAR%]
[COST]
Displays: 62.2911

Note. COST, MAR% and SELL are available in the Simple Calculator view only.

MAR%

The three functions: COST, MAR% and SELL are available in the Simple Calculator view only and work together as a "register functions" to calculate cost, percentage margin and selling price. See examples for COST above.

SELL

The three functions: COST, MAR% and SELL are available in the Simple Calculator view only and work together as a "register functions" to calculate cost, percentage margin and selling price. See examples for COST above.