The calculator 212X not only solves complex additions, subtractions, multiplications, and divisions for you, but it also supports you in various other areas of calculation. For example, it features keys for calculating costs, prices, and margins, for currency conversion, or for increasing or decreasing a tax value. Useful functions such as automatic rounding, percentage calculation, a double zero key, a 3-key memory, and a backspace correction key make operation easier for you. The extra-large and adjustable LC display shows a maximum of 12 digits before and after the decimal point. In sufficient light, the calculator receives the necessary power from the integrated solar cell; otherwise, it operates on a replaceable button cell battery.