EL-334W Large Desktop CalculatorTwelve-digit professional large desktop calculator with kickstand. Functions include: cost-sell-margin keys, grand total key, double zero key, backspace key, automatic tax keys, percent key, four- key independent memory and sign change. Operates on twin power. Power Source(s): Battery; Solar; Display Notation: Basic; Number of Display Digits: 12; Display Characters x Display Lines: 12 x 1.N/ASharp EL-334W Large Desktop Calculator, 12-Digit LCD Global Product Type: Calculators-Basic,Power Source(s): Battery; Solar,Display Notation: Basic,Number of Display Digits: 12,Display Characters x Display Lines: 12 x 1,Memory: 4-Key,Display Type(s): LCD,Case: No,Display Angle: Fixed,Display Characters Height: 19 mm,Percent Key(s): Yes,Fraction Calculations: No,Fraction/Decimal Conversions: No,Decimal Function: No,+/- Switch Key: Yes,Currency Exchange Function: No,Metric Conversion: No,Backspace Key: Yes,Double Zero Key: Yes,Amortization: No,Base Number Calculations: No,Bond Calculations: No,Cash Flow Calculations: No,Complex Number Calculations: No,Confidence Interval Calculating: No,Cost/Sell/Margin: Yes,Date Calculations: No,Depreciation Calculations: No,Equation Editor: No,Grand Total Key: Yes,Graphing Functions: No,Higher Mathematical Functions: No,Hyperbolic Functions: No,Hypothesis Testing: No,Interest Rate Conversion: No,Item Count Function: No,Levels of Parentheses: No,Linear Regression: No,Loan Calculation: No,Logical (Boolean) Operations: No,Markup/Down Key: No,Matrices: No,Percent Add-On/Discount: No,Polar-Rectangular Conversion: No,Probability (Random Number): No,Simultaneous Equations: No,Square Root Key: No,Tax Calculation: Yes,Time-Value-of-Money: No,Time/Date: No,Trig/Log Functions: No,Variable Regression: No,Size: 4 x 6,I/O Port: No,Wall-Mountable: No,Quantity: 1 each,Pre-Consumer Recycled Content Percent: 0%,Post-Consumer Recycled Content Percent: 0%,Total Recycled Content Percent: 0%,