Commodore 9R23 Bedienungsanleitung Seite 4

Percentage ratio
To compute 39 units divided by 207' :
39
Mark -up
To compute a 12% tax on $450:
450 E) E 504
Discount
To compute a discount
775 E 350 @ 503.75
Chain Mark-up/Discount
An item is $295.95. There
15% tax:
295.95 a
(Note: the = kev should not be used in obt ining
normal percentage or percentage
MEMORY:
Your calculator has a four key memory
operation.
— Memory Clear — Will clear memory
out recalling memory
in-use signal will disappear).
MR —Recall Memory — Will recall contents
memory register and acts as a complete
ber entry during any problem
[E , —the AccumulatingMemories —Will
cause the displayed
subtracted from the contents
register.
5
on S775:
is a 2cc,Z discount and a
@ 272.274
ratio)
for ease Of
with-
total. (The memory-
of
num-
sequence.
number to be added or
of the memory
M+ or M—adds or subtracts directly. The answer to
any problem can be entered into memory by press-
ing the M+ or M— key.
Computing 12 items at ly, 6 items at % 9 items
at 25$. Then a 20% discount.
Memory must be used.
Key Stroke Read
(to clear
(to clear
12
12.
12.
.18
0.18
2.16
2. 16
6
6.
6.
0.09
9 9
x
.25 0.25
2.25
2.25
4.95
4.95
20.
20
0.99
_3-96
7
0.2772
4.2372
This
with
sales
6
And 7% sales tax.
register)
all other registers)
(Rounds out to 4.24
is the total
discount and
tax) .