Texas Instruments Video Gaming Accessories TI-5006 II 用户手册

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页码 35
6
Using Memory Operations
Multiplication with Memory Keys
 You need the total of 3 items at 10.50
and 5 items at 4.95. By using the memory, you will not disturb a current
calculation.
Press
Display
Print
U U
 † 10.5 ? 3 N
10.5
x
3.
=
M
    31.50
31.50
M+
4.95 
? 5 N
4.95
x
5.
=
M
24.75
24.75
M+
U ††
M
56.25
56.25 M
4.95 
? 5 F †††
4.95
x
5.
=
M
24.75
24.75
M–
U
       31.5
31.5 M
U U clears the memory.
††
You recall the value in memory.
†††
You decide not to order the last item.
Calculating Gross Profit Margin
Performing a GPM Calculation
1. Enter the cost of the item and press 
?.
2. Enter the profit or loss amount. Enter a loss amount as a negative
value.
3. Press 
#.
Sample GPM calculations are shown on the next page.