Financial CalculatornDesign that delivers High availability, scalability, and for maximum flexibility and price/performancenMade in United statesnFull dot, 4-line displaynCost/sell/margin, investment appraisal, amortizationnConverts between percentage interest rate and effective interest ratenSimple and compound interest calculations, depreciationnSlide-on hard case; solar power with battery back-upnFinancial calculator with Direct mode key and 4 line display