Features Left-Side Total Key and Equals Plus Logic Perfect for those accustomed to using a calculator with the total key on the left side of the keyboard. Features an extra-large 12-digit fluorescent display for easy viewing. Fast and reliable 4.0 lines-per-second 2-color ribbon printer. Cost/sell/margin keys make for quick and easy profit margin calculations. Simply enter 2 variables and the third automatically appears. 2 independent tax keys allow the user to program 2 separate tax rates for easy computation. Enter 2 different tax rates, such as city/state, and they are added to your sales total automatically. Features 30 easy-to-use functions. Includes constants in multiplication and division, percentage add-on and discount, square root, time/date, change sign key, item count, fully selectable decimal settings, date/non-add key and selectable rounding switches. 4-key memory for easy retrieval. AC powered to work anywhere. Contemporary black and white styling complements any modern desktop décor.