Gives you all of the essentials for business and the reassurance of unbeatable HP quality. It helps you figure loans, analyze cash flows and much more. Easy-to-use; saves keystrokes and time with auto-increment capability. Makes short work of interest rate conversions, percent, percent change, margin and markup, plus essential statistics and math functions. Dimensions : 3-1/9″W x 5-4/5″D x 3/5″H.