Heavy-duty commercial calculator features a built-in, multi-angle kickstand to customize the angle to your personal preference. Print 4.3 lines per second in two colors with positive numbers in black & negative numbers in red. Design also includes an easy-to-read, extra-large, 12-digit display & two independent four-key memories. Sales tax rates can be easily stored & accessed. Functions include cost / sell / margin, 5/4 rounding, round up / down / off, item count, grand total, delta percent, auto decimal entry, markup / down, percent key, percent add-on / discount & variable decimal (add mode, 0, 2, 3, 4, 6, & floating). Calculator uses 2-1/4" paper & runs on AC power.