Calculator Desktop DJ220 Plus 300 Step with Tax Casio 38mm x 146mm x 219mm

12 digits Regular percentage calculations. Recheck 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 error. Tax calculation - Automatic calculation of price plus tax, price less tax, discount, selling price, tax amount, discount amount, and margin amount. Two-way power (Solar + Battery) Solar powered when light is sufficient, battery powered when light is insufficient.