Professional 12-digit desktop calculator with 120-step Check & Correct, Auto Check, Grand Total memory, dual solar and battery power, ideal for office, business and educational use. The Canon AS-2222R Desktop Calculator features a large 12-digit LCD display, 120-Step Check & Correct function, Auto Check, Grand Total memory, square root, percentage calculations, memory functions, correction key, decimal and rounding selectors, and dual solar plus battery power. Designed for accountants, retailers, students and office professionals, it delivers fast and accurate calculations with a durable desktop design.