59.
* Be sure to press the memory clear key ( ) to clear the previous stored
number.
When a number is stored in the memory, the “ “ sign appears on the display.
480 25
__
1500 12
__
53 6
23 8
56 2
99 4
53+6 = 59
23-8 = 15
56x2 = 112
99÷4 = 24.75
+)
210.75
7+7-7+(2x3)+(2x3)
=19
3500 25
__
660 880
__
2500 15
__
— 30 —
Percentage calculations
Memory calculations
180.
19.
210.75
24.75
112.
15.
75.
2875.
2625.
160.
640.
12% of 1500
Percentage of 660 against 880
15% add-on of 2500
25% discount of 3500
Profit: $160
Selling price: $640
(Subsequently)
Mark-up
What will the selling price
and profit be when the
purchasing price of an item
is $480 and the profit rate to
the selling price is 25%?