Office Desk Calculator, Cute Calculator for Kids, Basic Calculators Desktop, Dual Power Simple Financial Calculator with Big Button Large Display for Office Home and School (Blue)

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NOTE：Please Insert One AA Battery For Continuous And Accurate Usage，even though the desktop calculator can continue to work in a well-lit environment.Key Functions:1.[M+]: Memory Plus. Adds the number shown on the display to the number stored in the memory.Example: 3*2 + 2*6. If you directly inputs these numbers to the calculator,you will see the wrong answer: 48. If you press [3*2], [M+], [2*6], [M+], then press [MR] once, you will get the right answer: 18.2.[M-]: Memory minus. Subtracts the number shown on the display to the number stored in the memory.3.[MR]: Memory Recall. Recall the current memory register value ( Effective before pressing MC key).4.[MC]: Memory Clear. Clear the memory register (set to zero).5.[GT]: Grand Total. Whenever the [=] key has been pressed, the result will be stored into the Grand Total Memory.Example: If you want to calculate [2*3+3*5+6*8], press [2*3=], then [3*5=], then [6*8=]. Then press [GT], you will get the right answer [69].6.[MU]: Calculating Gross Profit Margin (GPM).Example: Enter [100] then press the [÷], then [15] then press the [MU] key, you will see 117.65 (100/(1-15%)).7.[AC]: Clear all formats and zero.