[. . . ] [. . . ] Install a new battery with the + symbol facing upward, and then use a pointed object to short the RESET hole at the top-right corner of the battery compartment. [ON/C] : Power on / Clear key [00 0] : Shift-back key [ ] : Square root key [00] : Double zero key [CORRECT] : Correction key [M+] : Memory plus key [MU] : Price mark-up / down key [CE] : Clear entry key [+/­] : ±Sign change key [GT] : Grand total key [000] : Triple zero key [%] : Percentage key [M­] : Memory minus key [MRC] : Memory recall key / Memory clear key [ CHECK ] [ STORE STORE [ + TAX ] :Price with tax key / To store tax rate when pressing [RATE] and [ + TAX ] keys [ RECALL ] : Price without tax key / To recall tax rate when pressing [RATE] and - TAX [ RECALL ] keys - TAX [RATE] : Tax rate setting key Before performing each calculation, press the [ON/C] key. If you want to dispose this product, do not mix with general household waste. There is a separate collection systems for used electronics products in accordance with legislation under the WEEE Directive (Directive 2002/96/EC) and is effective only within European Union. [. . . ] [. . . ]