12 Digit Large LCD Display, dual power, advanced Percentage Calculation, Euro Currency Conversion, Cost/Sell/Margin, Mark Up Calculation, Rounding, Grand Total Memory, Aluminium Front Plate. The Casio DF-120EM Desktop Calculator features a large 12-digit display, helping to keep your processes clear. It also features a euro conversion function to aid with cross-currency financial calculations and percentage calculation functions, which help make your processes more efficient.