Heavy-duty printing calculator offers two memories two independent tax keys and a 14-digit fluorescent display. Print 5.2 lines per second in two colors. Easily calculate and print loan calculations amortization schedule present/future value and days between dates. You can add subtract multiply and divide hours and minutes or minutes and seconds for time billing or payroll applications. Enter two cost/sell/margin variables and the third appears. Other functions include delta percent units price mode grand total sigma change sign key item count with averaging and square root. Design features a backspace key and built-in metal paper arm. Calculator runs on AC power. Victor 1570-6 14 Digit Professional Grade Heavy Duty Commercial Printing Calculator Gray Off White 1 Each (Quantity)