Desktop Type 12 digits Regular percent: Regular percentage calculations. Solar & Battery: Solar powered when light is sufficient, battery powered when light is insufficient. Rounding selector F: Floating decimals. CUT: Values are cut off. UP: Values are rounded up. 5/4: Values are rounded off. Decimal selector4,3,2,1,0 : Specifies the number of decimal places as 4,3,2,1,0. ADD2: 2 decimal places are assumed for entries and results of all addition and subtraction operations. Key rollover: Key operations are stored in a buffer, so nothing is lost even during high-speed input. Extra Large display: Larger display makes more data easier to read. Plastic keys: Designed and engineered for easy operation. Mark-up: All the mark-up capabilities of an adding machine for simplified cost and profit calculations.