Structurally... quite high... 70-80% Outfitting, i.e. weapons, life support, shielding... i'm going with a much lower figure... possibly nearer to 30%. Remember it was only being shielded by a planetary shield, and none of the lasers seen actually fire... so i'm guessing things like fire control weren't done either. Nor tractor beams. It was probably somewhat undercrewed too.