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Profit Analysis 
Example1: If the cost is $19.95 and selling Price is $39.90, 
what is the profit margin (%)?
  
     Press [1][9][.][9][5]  [COST]  [3][9][.][9]  [SELL]             
Profit% =50 
Example2: If the selling price is $20 and profit margin 
needs to be 50%, how much the cost should be?

     Press [2][0]  [SELL]  [5][0]  [Profit%]                                        
Cost=10 
Example3: If the cost is $69.3 and profit margin needs to be 
30%, how much the selling price should be?
     Press [6][9][.][3]  [COST]  [3][0]  [Profit%]                                
Sell =99
Tax & Tip Calculations 
Setting the Tax or Tip Rate 

To automatically calculate taxes and/or tips you need only 
enter the markup value such as 15% for tips into the 
calculator. 

1. To set a Tax rate or a tip rate press CE/AC, then Press and 
hold the TAX RATE key until you hear a beep and a 0 will 
appear on the display.  
2. Enter the Tax or Tip rate, (enter 15 in this example), and 
press TAX RATE again.    
3. The Tax rate is now set.  
 
Adding and Subtracting Tips, Taxes and Discounts 

Here is an example showing a convenient tip calculation:
(This is assuming you have programmed the RATE key for a 
15% tip.)
Once programmed with a value the key remains 
programmed until a new value is entered.

The Dinner is $138.00 
1. Press CE/AC
2. Enter 138
3. Press the TAX+ key and the tax will be automatically 
added to the total.
4. The total bill with tip = $158.70
5. Press TAX+ key again and it will show the tip = $20.70

If you need to figure a senior discount (10% for example), 
set the RATE using the procedure above, and this time, 
when you enter the $138 dinner price, hit the TAX – key 
and the discounted value or in this case, $120 will be 
displayed. Press TAX – key again and the discounted 
amount $18 will be displayed.

Remember, once a Tax or Tip rate is set, it will remain in 
memory until a new rate is entered
The Currency Conversion Mode 
 Setting a Currency Rate
(Example: 1 US Dollar = 0.93 Euro) 

1. Press CE/AC to clear calculations
2. Press the round CURRENCY EX RATE key and hold it 
until a blinking 0 appear on the display.  
3. Press (0) (.) (93) and CURRENCY EX RATE key.
4. The conversion rate is now set. To change this rate, 
repeat the procedure outlined.

Example: How much is $115.00 in Euros?

1. Press CE/AC to clear all calculations
2. Enter 115 and press the FOREIGN key
3. The answer is calculated automatically and displayed 
=106.95 Euros.

Example: How much is 100.00 Euros in USD?

1. Press CE/AC to clear all calculations
2. Enter 100 and press the HOME key
3. The answer is calculated automatically and displayed 
=107.52 USD.
Battery Replacement 
Calculator/Calendar Batteries
1. Turn Calculator Over
2. Replace Batteries following the Polarity Diagram Inside.
NOTE: Use Two AAA Batteries

Warning: (Keep batteries out of the reach of children)
Reset Feature 
If at any time the Calculator or Clock freezes, Turn 
calculator over and locate the reset button on the 
bottom. Use an opened paper clip to push the button. 
(The actual button is located inside the cover). This will 
reset all functions.
Care and Maintenance  
Keep the calculator dry. If it gets wet, wipe it dry before 
use.
Do not use harsh solvents or detergents to clean.
 

Содержание DESK PILOT II DF-551

Страница 1: ... adjust the values using the Up and Down buttons 7 After the Year has been selected press CLOCK one more time to lock in the time Notes The date display format may be toggled between for example 2 23 and 23 2 depending on your locality To toggle this reading press the Clock button on the front and then press Tax on the calculator side the display will reverse date and month At any time during the ...

Страница 2: ...ll you which song the alarm will use You may choose between two different musical sounds To test the songs just press any key between 1 or 2 2 Then Press SET once to select the Hour Twice to select the Minutes 3 To change the Hour or Minutes push the DOWN and UP buttons Be careful to note the PM designation which will tell you whether you are setting the alarm for morning or afternoon 4 Once your ...

Страница 3: ...ve and this time when you enter the 138 dinner price hit the TAX key and the discounted value or in this case 120 will be displayed Press TAX key again and the discounted amount 18 will be displayed Remember once a Tax or Tip rate is set it will remain in memory until a new rate is entered The Currency Conversion Mode Setting a Currency Rate Example 1 US Dollar 0 93 Euro 1 Press CE AC to clear cal...

Страница 4: ... dry If it gets wet wipe it dry before use Do not use harsh solvents or detergents to clean Printed in China 4 03 www datexx com TELEDEX Limited U S A Warranty TELEDEX INC warrants these products to the original purchaser to be free from defective material and workmanship The product will be repaired or replaced at our option for up to one year when returned with proof of purchase to the address b...

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