HP 20B - Manual (Page 51)

Break-even
51
7 Break-even
Figure 1 The Menu Map for the Break-even Menu
The Break-even Menu
To open the Break-even menu, press
:!
. To change the value of the displayed item, key in a number and press
I
. Once you have entered all known data, press
<
or
>
repeatedly to scroll to the unknown item and press
=
to calculate it.
The break-even function allows you to study problems involving a profit, when a quantity of items, with a cost to manufacture
and a fixed price to develop and market, is sold at a given price. See Figure 1.
Break-even Example
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 7-1 Break-even Example
Keys Display Description
:! Opens the Break-even menu starting with the current
value for fixed costs.
1500
00I Inputs 150,000.00 for fixed cost.
<250
I Inputs 250.00 for variable cost per unit.
<300
I Inputs 300.00 for price.
<1000
00I Inputs 10,000.00 for profit.