Product Review
"Professional Percentage Calculation Profit Margin via %-key Currency Conversions TAX-Calculation 4-Key Memory 3 Digit Comma Markers Key for changing plus/minus sign Grand Total-Memory Rounding selector (0, 1, 2, 3, 4, ADD2) Automatic rounding-off (F, CUT, 5/4) Backspace Key Square Root Double Zero Key"
