Sharp EL-1801V Portable 12-Digit 2-Color Serial Printing Calculator by Sharp. $30.10. Sharp introduces the EL-1801V, the first printing calculator to offer a Change Calculation feature. This feature allows the printing calculator to act like a cash register and the user enters a total amount, types in currency received and change will be calculated. This new model will compliment Sharp's market share leading printing calculator line-up.