Desk Calculator 12 Digits Basic Calculator with Large LCD Display Big Sensitive Button Solar and Battery Dual Power Standard Function Desktop Calculators for Office, Home, School
[M+]: 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.
[M-]: Subtracts the number shown on the display to the number stored in the memory.
[MR]: Recall the current memory register value.
[MC]: Clear the memory register(set to zero).
[GT]: 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]
[MU]: Which is for 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%))