I would do separate stats for each batch of shipped eggs, and your own eggs. So 3 sets of stats. When I figure my stats, I do 2 sets. One includes # of viable chicks/number of eggs set, and the other includes # of viable chicks/number of eggs that were not clear. This IMO is the most important %. Then, if you want to break it down even further, open the quitters and see if you can find a common denominator to help you problem solve for the next hatch: Early quitters, late quitters, perhaps at a date that corresponds to a power outage or a temp spike, chicks that made it to lock down, but failed to externally pip, chicks that got stuck during/after external pip. Why did they fail to progress? Dry membranes, too wet, malposition, chick too big, egg shape???? Any change in porosity of the eggs that failed??? Failed eggs associated with any particular hen or roo? Failed eggs associated with any lethal genes?
Stats give you a sense of accomplishment, but by themselves, they are just a number. Those stats and your assessment of them will make your next hatch more successful. Read hatching eggs 101 in the learning center???