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Manual Aurora DT830P Calculator

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Manual

Thank you for purchasing your new Aurora DT830P calculator, please remove and recycle all packaging and

carefully remove the printed overlay from the screen of the calculator

Instructions and FAQ’s:

1. Turning your calculator on and off.

Your calculator is equipped with a patented ‘direct number input’ feature, which allows you to press ‘any’

key to turn your calculator on, should you press a number key, then this number will also register in the

display. The calculator is equipped with an ‘auto off’ feature and will power down by itself after a period

of inactivity.

2. What are the COST, SELL and MARGIN keys for?

These buttons allow you to calculate ‘gross profit margin’ and your required cost or sell prices. There are

3 variables - Cost, Sell and Margin, if you input two of these variables the calculator will automatically

solve the third.

Example 1.

My cost is 30, I will sell for 60 – what gross profit margin am I making?

[Input 3, 0, COST, 6, 0, SELL] – The answer will be displayed as 50%

Example 2.

My cost is 30, I want to make 50% gross profit – what should I sell it for?

[Input 3, 0, COST, 5, 0, MARGIN] – The answer will be displayed as 60

Example 3.

I will sell for 60 and want to make 50% gross profit – what should my cost be?

[Input 6, 0, SELL, 5, 0, MARGIN] – The answer will be displayed as 30

After you have solved any third variable you can review all 3 variables by pressing the cost, sell and

margin keys again.

3. What are the ‘+TAX’ and ‘–TAX’ keys for?

These buttons allow you to add or deduct a user definable percentage at the touch of a button. A

common use for these buttons is too add or deduct sales tax.

Firstly you need to set the tax rate.

Example – Setting a tax rate of 19%

[Input 1, 9, RATE, SET] – The SET key is on the same key as ‘+TAX’ .

The tax rate is now set at 19% and will remain in the memory until you change it even when the

calculator turns off. Now you have set you tax rate you can simply add or deduct tax easily by using the

‘+Tax’ and ‘-Tax’ Keys

Example1 – The price is 60 including 19% sales tax, what is the price exclusive of tax?

[Input 6, 0, -TAX] – The answer is displayed as 50.42

Example 2 – The price is 60 excluding 19% sales tax, what is the price including tax?

[Input 6, 0, +TAX] – The answer is displayed as 71.40.

You can also view the actual tax content and the total by pressing the same tax key again.

You can also review the currently programmed Tax rate by pressing ‘RATE’ and ‘RECALL’ (the recall key is

on the same key as the ‘-TAX’ key) the currently set tax rate will be displayed on the screen.

4. How do the memory keys work?

Your calculator has a memory and you can store a variable number, to store a number press the ’M+’ key,

you can store a simple number or an answer from a calculation. The memory also has a running total, so

you can add and deduct numbers using the M+ and M- keys. To see the number stored in the memory or

the running total press the MRC key once. To clear the memory and reset back to zero press MRC key

twice.

Example1 – Store the answers to the simple sums 2+2 and 3+3 in the memory and calculate the total.

[Input 2, +, 2, M+, 3, +, 3, M+] now press the MRC key once, the correct answer of 10 will be displayed.

Example 2 – Use the memory to add these number together 5, -6, 8,9,-4.

[Input 5, M+, -6, M+, 8, M+, 9, M+, -4, M+] – now press MRC once and the correct answer 12 will be

displayed. To clear and reset your memory press the MRC key twice. Whenever a number is stored in the

memory an ‘M’ will show on the display.

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Specifications

Brand	Aurora
Model	DT830P
Category	Calculators
File type	PDF
File size	0.36 MB

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Frequently Asked Questions about Aurora DT830P Calculator

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

A battery in my device is oxidized, can I still safely use it? Verified

Ja, the device can still be safely used. Firstly, remove the oxidizd battery. Never use bare hands to do this. Then clean the battery compartment with a cotton swab dipped in vinegar or lemon juice. Let it dry and insert new batteries.

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