Casio SL-310UC-PK - Rekenmachine

Portable Type\n\n10 digits\n\nTax calculation\nAutomatic calculation of price plus tax, price less tax, discount, selling price, tax amount, discount amount, and margin amount.\n\nTime calculation\nTime calculation allows easy input and calculation of hour, minute, and second values.\n\nTwo-way power\n(Solar + Battery) Solar powered when light is sufficient, battery powered when light is insufficient.\n\nFunction command signs\nA symbol (+, -, ×, ÷) on the display indicates the status of operation you are currently performing.\n\nKey rollover\nKey operations are stored in a buffer, so nothing is lost even during high-speed input.\n\nExtra Large display\nLarger display makes more data easier to read.\n\nPlastic keys\nDesigned and engineered for easy operation.\n\nProfit margin percent\n" % " key gives quick access to prices and profits, and also delivers add-ons, discounts, ratios and increase/decrease values.