Sharp CS-2640 Operation Manual page 9

NON-ADD / SUBTOTAL KEY:
Non-Add – When this key is pressed
right after entry of a
number in the Print mode,
the entry is printed on the
left-hand side with "#".
This key is used to print
out numbers not subject to
calculations
codes, dates, etc.
Subtotal – Used to get subtotal(s) of
additions and / or subtrac-
tions.
following
subtotal is printed with "◊"
and the calculation may be
continued.
By pressing this key even in the
Non-print mode, the displayed
number is printed with "P".
TOTAL KEY:
Prints the total of addition and
subtraction with " ✱ ".
This key also serves as a clear key for
the calculation register and resets an
error condition.
such as
When pressed
or , the
7
FIRST RECALL MEMORY KEY
F I R S T R E C A L L
MEMORY KEY
SECOND RECALL AND CLEAR
MEMORY KEY
SECOND RECALL MEMORY KEY
CHANGE SIGN KEY:
Changes the algebraic sign of a
number (i.e. positive to negative or
negative to positive).
MULTIPLE USE KEY:
Performs mark-ups, percent change
and automatic add-on / discount.
TAX-INCLUDING KEY:
This key is used for calculations with
the tax/discount rate.
To recall the presently stored rate for
check, press to clear the calculation
register and reset an error condition,
then press . The tax / discount rate
is printed with the symbol "TX".
A N D C L E A R