El-334w Large Desktop Calculator, 12-digit Lcd

Twelve-digit professional large desktop calculator with kickstand. Functions include: cost-sell-margin keys, grand total key, double zero key, backspace key, automatic tax keys, percent key, four- key independent memory and sign change. Operates on twin power. Power Source(s): Battery; Solar; Display Notation: Basic; Number of Display Digits: 12; Display Characters x Display Lines: 12 x 1.