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.
Calculator Desktop DJ220 Plus 150 Step with Tax Casio 38mm x 146mm x 219mm