Our banked egg packages offer a 45% success rate. From a package of 6 eggs, our goal is for 50% or more to survive the thaw which we hope will result in 1 to 2 good quality embryos to transfer. Keep in mind that egg banking is a very delicate process, and it is normal to lose a couple of eggs in the freeze/thaw.  You should expect that these packages will yield a lesser quantity of embryos overall, so we suggest that you purchase additional eggs if you are hoping to bank embryos for future use.