10 digit angled Extra-large display, dual power, Easy to operate and ergonomically shaped, Numeric keypad configured with outdented zero key, Advanced Percentage Calculation, tax Calculation of price plus tax/price less tax, Cost/Sell/Margin, Mark-Up Calculation. Reliable & Durable CASIO Desktop Calculator with Aluminium style Front Plate and Anti-slip Rubber Feet. Solar/Battery powered - solar powered when light is sufficient, else battery powered, with Auto Power-Off. 10-Digit angled XL-Display with function command signs and thousands separators Other Functions include: 10 Digit Large Angled LCD Display Solar Powered with battery back up Tax Keys/Tax calculations Cost/Sell/Margin Keys 3 Key Memory Change Sign Key -switch from + or - % key Double size + Key Stylish metallic finish Large plastic keys