Victor 1280-7 - Manual (Page 10)

Rate and Tax Keys
Tax 1 and Tax 2 keys are used to calculate an amount of tax using the preset tax
rate. Use the “+” key for calculating an amount including TAX, and the “-“ key
for calculating an amount excluding TAX.
To set TAX 1, press and hold the RATE key until the display flashes. Enter the
TAX Rate and then press TAX 1. TAX 1 is now set. To set TAX 2, follow the
same steps substituting TAX 2 for TAX 1.
Display Symbols
M
A number has stored into memory.
E
Error or over flow of capacity.
-
The displayed value is negative.
RESET Button
Electromagnetic interference or electrostatic discharge may cause the display to
malfunction or the contents of the Memory to be lost or altered. Should this occur, use
the tip of a ball point pen or a paper clip to press the RESET button at the back of the
calculator.
After resetting the calculator set the calendar, clock, and tax rate again.