Printing calculator features super-large, 12-digit display, fast 2.7 lines per second, built-in metal paper arm. Enter two cost/sell/margin variables and the third appears and prints. Includes tax +/- keys, grand total key, sigma switch, delta percent, percent key, change sign key, four-key memory, date/non-add key. Ac/Dc powered. Ac adapter included. Four AA batteries sold separately.
