Hello all just set my first duck eggs on Friday and have read different things about humidity on just about every website. I need some expert advice. So here I am

The paper they threw in with the eggs from the hatchery said to keep the humidity up to 86% and 94% at hatch! That seems super high to me.(My guess is this is for the commercial hatcheries?). I have looked and looked through the threads but it is hard for me to know just what a duck needs. (this is my first duck hatch and I'm a wreak already) haha. I will second guess my every move, that's just my nature. So from what I gather so far is 45-50% is ideal until hatch and hatch is 70ish? ?? Whats the expert advice here?