Roylco HP 12C Financial Calculator - 120 Functions - Rate Set Feature, Built-in Memory, LCD Display - 1 Line(s) - 10 Digits - LCD - Battery Powered - Battery Included - 5" x 3.1" x 0.5" - Black - Plastic, Brushed Aluminum - 1 Each Financial calculator includes more than 120 built-in functions and allows 20 different cash flows for internal rate of return and net present values. Calculate loan and mortgage payments, convert interest rates, and figure bond prices and yields. RPN keystrokes optimize data entry and calculation performance. Program up to 99 keystrokes into memory and then execute with the push of a single button. Other functions include depreciation, percent change, cumulative statistical analysis, standard deviation, mean, weighted mean, linear regression, forecasting, correlation coefficient, date arithmetic, undo, backspace keys, and power off memory protection. Calculator has a 1 line x 10 character, liquid crystal display (LCD). The enclosure material is made of plastic and brush aluminum, and the keytops are made of plastic. Calculator includes a battery (CR2032) to power the unit and a synthetic leather pouch.