Hatch rate with natural incubatuon?

[Flitn2Nfro]

What is the hatch rate for natural incubation compared to artificial incubation?
I'm not interested in artificial incubation but I am currently raising a couple broody breeds and wonder about letting them hatch their own when the time comes.

 

[oldhenlikesdogs]

I usually get 95-100% hatch rate here on broody hatched.