Office Depot Financial Calculator AT-814. Tax Calculations: Yes. Text Book Display: No. Thousands Separator: Yes. Time Calculation: No. Up Function: Yes. Statistical Calculations: No. Square Root Function: No. Sign Changing: Yes. Profit Calculation: No. Power Supply Type: Battery, Solar. Percentage Function: Yes. Number of Characters: 12. Naturel Display: No. Memory Keys: 3. Material: Plastic, Metal. Margin: No. Grand Total: No. Double-Zero Key: Yes. Display Screen Type: LCD. Cut Function: Yes. Decimal Select: Yes. Currency Conversion: No. Cost, Sell, Margin Function: No. Batteries Included: Yes. Battery Size Supported: L1131. Auto Rounding: Yes. 5/4 Function: Yes. Dimensions: 133 x 34 x 184 mm (w x h x d). Colour: Silver.