Casio Digital Desktop Basic Calculator, DM-1200FM, Multicolour

Highlights: Solar powered when light is sufficient, battery powered when light is insufficient Calculate the cost, selling price, or margin of profit on an item, given the other two values Automatic calculation of price plus tax, price less tax, discount, selling price, tax amount, discount amount, and margin amount Extra large display for easier reading Key operations are stored in a buffer, so nothing is lost even during high-speed input