Printing calculator with large display Easy-to-read 12-digit fluorescent display. Fast, 2-color printing at up to 4.8 lines per second. Features a variety of useful built-in functions. Includes up/down rounding, item count, change sign (+/-), auto constant, grand total, right shift, mark-up, percent key, percent add-on/discount, conversion function and clock/calendar function. A 4-key memory holds 1 number. AC powered.