Such a gorgeous mare and stallion. The baby is sure to be a stunner.
I personally don't think you can put an exact percentage on inherited characteristics. However, you can always have hope that the foal will come out in a way that you like (though I'm sure you'd love it regardless). And really, do percentages matter? It could be 2% inherited conformation, personality, etc...it still
has the mother's DNA, so it's still a part of her.