12-digit desktop business calculator features extra-large, fully punctuated display that is tilt adjustable to reduce glare for easy viewing. Offers cost-sell-margin, tax set, tax +/- mark up and grand total keys. Includes six decimal settings and selectable decimal and rounding slide switches. Provides square root key, percent key, change sign key, backspace key, round up/down, automatic constants, and 3-key independent memory. Calculator has PC type keyboard and is solar powered with battery back-up.