HP 10bII+ User Manual page 118

Example 1
The sale price of an item is 300.00, the cost is 250.00, and the fixed cost is 150,000.00.
How many units would have to be sold to make a profit of 10,000.00?
Table 1 1-2 Break-even example
Keys
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110 Break-even
Display Description
BK EV CLR Clears break-even memory.
(message flashes, then
disappears)
150,000.00 Inputs fixed cost.
250.00 Inputs variable cost per unit.
300.00 Inputs price.
10,000.00 Inputs profit.
3,200.00 Calculates the current value for the
unknown item, UNITS.