HP 20B - Manual (Page 53)

Business Problems
53
8 Business Problems
Figure 1 The Menu Map for the Percent Calculation (%calc) Menu
The Percent Calculation Menu
Press
:#
to open the menu. There are four items in this menu: markup as a percentage of cost ( Mkup. %C ), markup
as a percentage of price ( Mkup. %P ) , part as a percentage of total ( Part%Tot. ), and percent change ( %Change ). These
items allow you to access sub-menus. Press
<
or
>
repeatedly to scroll to the desired sub-menu, then press
I
to open it. See Figure 1.
To change the value of a 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.
To return to the percent calculation menu, from anywhere within the menu or sub-menus, press
:#
.
To exit the menu, press
O