The green way to calculateFor use at home or at work: the environmentally friendly MS-88ECO ECO table-top calculator helps protect our climate. It comes equipped with a housing made from recycled plastic. It also has lots of useful functions, such as currency conversion and square root calculation.- Two Way Power.- Upper and lower case made out of recycled plastic.- Key Rollover.- Percentage Calculations.- Currency Conversions (3 Conversion Memories).- TAX-Calculation.- Independent Memory.- 3 Digit Comma Markers.- Key for changing plus/minus sign.- Rapid Correction Key.- Square Root.