JB10-D
Tax Calculator 

Button battery inside tis product.

COST MARGIN CALCULATOR SPECTIFICATION

A KEY OPERATIONS: 

: Power on/ All clear
: Clear /Clear error
: Cost input key
: Sellinput key
: Margin input key
: Right shift key (Shifts the displayed value to the right, deleting the rightmost digit).
: Sign change key (Changes the sign of the displayed value from positive to negative or vice versa).
: Numeral key
: Function key
: Grand total. Results are accumulated in the grand total by depressing the key. Pressed once, it recalls the grand total. If pressed twice, it clears the grand total.
: Sets the tax rate when pressing [SET] & [ TAX+].
: Stores tax rate, and calculates price – plus – tax.
: Recalls tax rate, and calculates price – less – tax.
: Memory plus (Adds the displayed value to the independent memory).
: Memory minus (Subtracts the displayed value from the independent memory).
: Recall & Memory Clear.

B SWITCH DESCRIPTION : 

(TAB-A)
SELECTION OF DECIMAL MODE
(UP) ↑ : Rounding up
5/4 :Rounding off
(CUT) ↓ : Rounding down   (TAB-B)
SELECTION OF DECIMAL DIGITS

• F: Floating decimal point.
• 4,3,2,0 indicates 4, 3, 2 or 0 decimal.

A (ADD2):
Add Mode. Automatically sets the number entered to 2 decimal places. e.g. 123 =1.23′, 0.08’. This mode has no effect on multiplication and division operations.

C LCD DISPLAY :
: 3-digit separator (apostrophe)
TAX : Tax amount
TAX+ : Price-plus-tax
TAX- : Price-less-tax
M (MEMORY) ‘Independent memory
— (— MINUS) — : Displayed when value is negative
E (ERROR ) : Thedisplay shows “ERROR” when the answer exceeds the maximum number of display .

D HOW TO CHANGE THE BATTERY
This product utilises two power sources:

1. Solar energy
2. LR44 alkaline button battery (1.5V)

Opening the battery compartment by using cross screwdriver.
Auto Power-off : After approximately 5-12 minutes.
When the display becomes blurry, this indicates the calculator is low on battery. Keep the calculator power by solar panel ina bright location but out of direct sunlight, or replace the battery.

E CALCULATION EXAMPLES:

• BASIC CALCULATIONS
• ROUNDING
• ADD MODE
• CONSTANT CALCULATIONS
• PERCENT CALCULATIONS
• Independent memory
  Adds the displayed value to independent memory.
  Subtracts the displayed value from independent memory.
  Recalls the value stored in independent memory & clears independent memory.
• Grand total memory
  Store the calculated result when pressing .
  Recalls the value stored(accumulated)in grand total memory. Clear the data by pressing  twice.
  Clears independent memory.
• TAX CALCULATIONS “F Free”
  • Setting a Tax Rate
  Example: Tax rate = 5%• TAX CALCULATION EXAMPLES (TAX RATE=5%)

1. Original cost=$ 150
   Calculate the price-plus-tax
   (Price-plus-tax)
2. Original cost =$3.00, $5.00. $8.00
   Calculate the total cost, price-plus—tax
   (Total price-plus-tax)
3. Price—plus—tax=$ 100, Calculate price-less—tax and tax amount
   (Price-less-tax)
   TAX
4. Taxable item=$30.00
   Non-taxable item=$20.00
   Calculate price-plus-tax for taxable item and total of taxable and non-taxable items.( Price-plus-tax value of taxable item)( Total of taxable item + non-taxable item)

First, calculate the price-plus-tax value of the taxable item, and then add the non-taxable item.( Price-plus—tax value of taxable item )(Total of taxable item + non-taxable item)

Example1: What is the margin on an item that has a costof $1,000 and a selling price of $2,000? Example 2: What s the margin amount on an item that costs $120 and is marked up by 40%? What is the selling price? Example 3: What s the margin amount on an item that has been marked up by 30% and is selling for $150? Whatis the cost?

Power Supply
This calculator is powered by one LR44 1.5V alkaline bution battery.

Button battery inside tis product.

WARNING!

• WARNING! KEEP BATTERIES OUT OF REACH OF CHILDREN.
• Never allow children to replace button batteries on any device.
• Swallowing or placing inside any part of the body may lead to severe or fatal injuries in as little as 2 hours or less due to chemical burns and potential perforation of the oesophagus.
• If you suspect your child has swallowed a button battery or placed inside any part of the body immediately call the 24-hour POISONS INFORMATION CENTRE on 13 11 26 for prompt advice. If your child is having any difficulty breathing, contact 000.
• Examine devices and make sure the battery compartment is correctly secured, e.g. that the screw or other mechanical fastener is tightened. Do not use if compartment is not secure.
• Dispose of used button/coin batteries immediately and safely. A battery can still be dangerous even when it can no longer operate the device. Place sticky tape around both sides of the battery and dispose of it immediately out of reach of children in an outside bin or recycle safely.
• Tell others about the risk associated with button batteries and how to keep their children safe.

Documents / Resources

J Burrows JB10-D Recycled Desktop 12 Digit Calculator [pdf] Instruction Manual JB10-D Recycled Desktop 12 Digit Calculator, JB10-D, Recycled Desktop 12 Digit Calculator, Desktop 12 Digit Calculator, Digit Calculator, Calculator

References

• User Manual