Desk Calculator, Basic Office Calculator with 12 Digits Large Display, Dual Solar Power and Battery, 4 Function Simple Calculation, Big Button for Office Home School(Black)

This is basic office desktop calcutor with 12 Digits Large screen LCD display, dual solar power and battery power, big button Calculator for office, home, and school(Black)

NOTE:Before enjoying the function below ,please insert one AA battery for backup, then combines both solar power and battery, there can provide reliable and uninterrupted use.

Function description:

1.[M+]: Memory Plus.

2.[M-]: Memory Minus.

3.[MR]: Memory Recall.

4.[MC]: Memory Clear.

Example: Calculate [3*3+2*5-2*3], you can press [3*3], [M+], then [2*5], [M+], then[2*3], [M-], and press [MR] once, you can get the right answer [13]. and then can press [MC] to clear the memory.

5.[GT]: Grand Total.

Example: Calculate [3*3+2*5+2*3], press [3*3=], then [2*5=], then[2*3=]. Then press [GT], you will get the right answer [25].

6.[CE]: Clear Entry.

7.[]: Backspace.

8.[MU]: Mark-up and Mark-down.

Example: Enter [4+32], [MU], then get the result of [(4+32)/32]*100

Enter [90-80], [MU], then get the result of [(90-80)/80]*100

Enter [80*10], [MU], then get the result of 80*(100+10)%/100%

Enter [80/10], [MU], then get the result of 80/(1-10%/100%)

9.[AC]: Clear all formats and zero.