My hatch rate overall was pretty dismal, I need to sit and figure it out.
I always wonder if you should count from the beginning, every egg you set, or should you count after 7 day candle when you take out the unfertile eggs?
That makes a better htch rate.
Depends on what your are monitoring...
If you are monitoring your incubator setup to fine tune and tweak your incubation methods, you would not count clears/unfertilized or any other physically damaged eggs as they have no bearing on incubation practices...
If you are monitoring your mating pairs and/or your egg supplier to optimize yeilds, you most definitely should factor in clears/unfertilized in an overall 'yield' number, but not necessary a 'hatch' number...