HP 20B - Manual (Page 52)

Break-even
52
Table 7-1 Break-even Example
Keys Display Description
<= Calculates the current value for the unknown item. 3200
units would have to be sold to return a profit of
10,000.00.
To reset the menu items to their default values, with any item of the Break-even menu displayed press
:x
. With
BrkEven displayed, press
I
to reset the menu, or
O
to cancel. Press
O
again to exit the menu.