12-digit professional desktop calculator with two-color printing is engineered with antimicrobial protection to reduce growth of microbes and bacteria that cause odors and discoloration. Prints 4.3 lines per second in two colors. Features a 12-digit fluorescent display, commercial keyboard, automatic tax keys, markup/gross profit margin, four-key independent memory, delta percent-percent of change, percent, change sign, grand total, item count, date/non-add, sigma and backspace keys. AC operation.