I suspect that what you're looking for is something that you can look back with over the course of a year and say...my average bouquet sold over the counter has gone up from £26.50 to £35.00 and we're still maintaining our profit margin, we must be doing something right! This is the sort of stuff that builds corporations. Unfortunately, you need to keep track of everything you do, record everything, input it all, and most important be very religious about it. Otherwise, the data is distorted and meaningless.