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Welcome to the Calculation Revolution! With the TrackBack calculator, you can see what you're doing and make corrections to your calculations without starting over.
Just use the arrow keys to TrackBack through your numbers and to select the number or function you want to correct. Then replace your selection with the new value, and continue. It's that's simple!
The TrackBack lets you check up to 79 entries, so you can be sure of your numbers!
NOTE: For longer calculations, it is recommended to obtain sub-totals by pressing the "=" key after a set of 5-10 values, then continue on and verify the next set of numbers.
Dual Solar/Battery Power - built-in solar panel extends battery life by powering the calculator in the light.
Tax Calculation - easily calculate price-plus-tax, and the tax amount with built-in functionality.
Profit Analyzer - Easily perform buy and sell analysis with the Cost/Sell/Margin keys. The alpha-numerical display allows for easy to follow results.
Automatic Power Off - saves battery power by turning off the calculator if it is left unused for 5-8 minutes.
[ON] Turn ON the calculator
[AC] All Clear AC
[%] Percentage operation
[DELETE] Delete input characters
[INSERT] Insert input characters (Only on larger desktop calculators)
Press the UP and DOWN arrow to review your last 25 calculations.
Change 5 x 7 = 35 to 5 x 8 =40.
Use the LEFT ARROW key to move the cursor over the 7.
Press the 8 key to replace the 7 then press the EQUAL key.
NOTE:
The UP and DOWN keys are used for reviewing previous calculations.
The LEFT and RIGHT keys are used for moving the cursor for corrections.
Example
Your cost is 100. Enter 100 then press the COST key.
You want to sell at 150. Enter 150 then press the SELL key.
The profit margin will now automatically show. In this case the profit margin is 33.33%.
Example
Your cost is 100. Enter 100 then press the COST key.
You want to make a 50% profit. Enter 50 then press the MARGIN key.
The sell price will now automatically show. In this case the sell price is 200.
Press the RATE key and the current rate will show. In this example 5%.
Enter the value to which you wish to set or change the tax rate. In this case 7%. Enter 7 then press the RATE key.
You will be asked to verify the change.
If the change is correct, press the EQUAL key.
The new tax rate is now set.
If you are buying an item for $25 and you want to know how much it will cost after taxes, at the rate as set in the previous step, enter 25 then press the TAX+ key.
$26.75 is the total price with tax included.
$1.75 is the tax you paid.
Can I check something I entered yesterday?
Yes you can! Press the UP arrow key to find the relevant journal then use the LEFT or RIGHT arrow key to move the cursor to the required position to correct erroneous values or functions.
Review 1:
It has everything I need - big numbers and keys, large digital readout, hybrid power so it doesn't run out of batteries, not a bunch of complicated functions!
Review 2:
I love this calculator! I am an accountant, and being able to see and edit the audit line is fantastic.
Review 3:
I use this calculator for business and it works perfectly!
Review 4:
This is a great calculator. Very smart features and so easy to read and use. I highly recommend it for any small business owner.
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
Download Datexx TrackBack DD-7722 - Editing Business Calculator Manual
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