Show your work in Excel We have sold 82,384 Purell Wipe 20 ct. packages since doing the 2 for $4 promotion. We have had an average retail of $2.2461955 Retail is: $2.49 for a single (full retail) or 2 for $4 How many units have we sold as a single (full retail)? How many units have we sold as a 2 for $4