Casio 12-Digit Tax & Exchange Desktop Calculator

12-digit dual power desktop calculator with tax and exchange functions features a large, easy-to-read display and plastic keys. Functions include a three-key independent memory, cost/sell/margin, grand total, key rollover, percent, profit margin percent, change sign, double zero key, round off, cut off, add mode, three-digit comma markers, back space and auto power off. Calculator has a kick stand for easy desktop use. Solar power with battery backup.