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E-23
480q25t 640.
w 160.
(Profit)
100w80t 25.
a•80e9| M 720.
50e6} M 300.
20
e3| M 60.
ª M 480.
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%?
If you made $80 last week
and $100 this week, what
is the percent increase?
80 × 9= 720
−)50× 6 = 300
20 × 3= 60
480
About the Power Supply
Caution
• All data stored in memory is lost if you remove both batteries at the same
time.
• Replace the batteries at least once every 2 years, no matter how much
you use the unit.
• Be sure that you keep a separate copy of all important data that you store
in the unit.
To replace the batteries
1. Press OFF to switch power OFF.
2. Slide the battery compartment cover in the direction indicated by the arrow.