Sharp EL1197PIII Printing Calculator With Two Color PrintHighlights : Ideal for heavy duty office use 12 digit blue fluorescent display with punctuation Prints 4. 3 lines per second Prints in two colors: positive numbers in black, negative numbers in red Uses standard size paper rolls Displays and prints date and time Grand total key Mark up profit margin key for performing cost selll margin calculations, percent changes and automatic add on discounts Average key to find the mean or average Tax key 4 key