12 digits Change function Easily calculates payment amount and change. Cost/Sell/Margin Calculate the cost, selling price, or margin of profit on an item, given the other two values. Solar & Battery Solar powered when light is sufficient, battery powered when light is insufficient. Function command signs A symbol (+, -, ×, ÷) on the display indicates the status of operation you are currently performing. 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. Profit margin percent " % " key gives quick access to prices and profits, and also delivers add-ons, discounts, ratios and increase/decrease values. الحالة جديد النوع أجهزة أخرى