Whether in the office at the desk, on commercial calculations in the business or at home for private accounting, a pocket and desk calculator is an indispensable companion. Benefits of the CASIO MS-100EM include: currency conversion (1 course): after entering and saving the desired exchange rate, amounts can be easily converted to another currency. Professional percentage calculation: determines percentage bills and deflations with separate display of calculated value. Mark Up with percentage key: quickly determines margins and markings in the commercial sector. Cost / Sell / Margin: the profit calculation allows you to determine costs, sales price and margin. Quick Correction Button: Delete current entries for quick correction without deleting the entire calculation. `+/- sign change: e.g. from 100 to -100 or vice versa, at the touch of a button. Input buffer: function to secure inputs so that no keys are locked or missing input during fast consecutive strokes. 3 Key Memory: Memory keys can save numbers for later use. Calculate command display: the arithmetic type that is running is displayed in the display as an icon. Thousands of subdivision: After three digits each, the thousands separation is visually displayed by a marking. Solar/Battery Operation: the devices are solar powered and supported by battery operation if required. If the calculator is not used for 6 minutes, it turns off automatically. This also protects the battery. Memory protection battery: stored data, such as currency rates or tax rates, will not be lost when changing batteries or when power is switched off. Aluminium front: surface with particularly durable properties. Rubber feet: on the back of the device.