Casio Calculator MJ-120D PLUS

Casio MJ-120D Plus - BK 300 Steps Check and Correct Desktop Calculator with Tax & GT Keys & On Display Indication of Active Constant (K) 12 Digits, 300 Steps Check and Correct Calculator for Office & ShopRecheck Function: The recheck function allows confirmation of errors by sound when checking calculations - if the user presses an incorrect key when performing a second calculation to check calculation results, a buzzer sounds to alert the user of the errorOn Display Indication of Active Constant (K): Easier technique for repeat Calculation for +, -,  ÷, x .  Benefits: reduces any chances of manual error in repeat calculations. E.g.  Press [2] [X] [X] (K is shown on screen) to set “Multiply by 2” as constant. Enter, 10, and keep pressing [=] to get 20, 40, 80, and so on.Dedicated Tax keys for calculation of price plus tax, tax amount, Price less tax.Dedicated GT key for Grand Total CalculationMark-Up: All the mark-up capabilities of an adding machine for simplified cost and profit calculationsIndian Comma Marker for easy reading of numbers in Lakh & Crore. Can be set to show numbers in Million & Billion also.