The Casio HR-170RC Printing Calculator is a reliable desktop tool built for home, office, or small business use. Featuring a large 12-digit LCD display, high-speed two-color printing, and an easy-to-use layout, this calculator makes complex calculations fast and organized. Designed with dual power capability (AC adapter or AA batteries), it supports essential business functions like tax calculation, cost/sell/margin analysis, and clock/calendar printing. Its Check &amp; Correct function allows users to verify up to 150 previous steps, making it a dependable choice for accurate record-keeping.Features:12-Digit Large Display: Clearly shows large numbers for easier reading and fewer input mistakes.Two-Color Printing: Differentiates positive and negative values with black and red ink.Check &amp; Correct Feature: Reviews and edits up to 150 steps of calculation history.Cost/Sell/Margin Keys: Quick and accurate profit margin calculations for business use.Clock &amp; Calendar Printing: Includes time and date stamps for reliable documentation.Dual Power Source: Operates on 4 AA batteries or with an optional AC adapter (not included).&nbsp;