Desktop calculator features a 12-digit LCD that displays clean, crisp numbers to help prevent reading errors. Dual-power operation runs on both solar and battery for reliable performance no matter where you are. Upright, angled display ensures easy viewing while sitting on your desktop for added convenience. Large, sharply defined keys help you quickly work through your calculations and reduce typing errors. Calculator also offers tax calculation, cost-sell margin, sign change and more.Desktop calculator features a 12-digit LCD that displays clean, crisp numbers to help prevent reading errors. Dual-power operation runs on both solar and battery for reliable performance no matter where you are. Upright, angled display ensures easy viewing while sitting on your desktop for added convenience. Large, sharply defined keys help you quickly work through your calculations and reduce typing errors. Calculator also offers tax calculation, cost-sell margin, sign change and more.