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Sorry, I should have elaborated. I "zero" my 375 so the center of my 2.5 -3 inch group is about 2 inches high at 100 yards. At 90 yards it would be about the same. The limiting factor is my skill.
I sight all of my rifles so that they are zeroed in at 100 yards and then I figure out the drop from there at 50 yard increments for what ever hunting load I am using out of that rifle. I keep this on a little file card I laminate and tape to the stock.
I chose a '100 yard zero' because here in Michigan that is as long a shot as I am likely to be presented with in our woods and fields.
Anyway that is my system and it works for me but I am sure if you ask around you'll find a dozen other answers that are just as good.
90 meters is about 100 yards, and I usually sight in my rifles for 2.5" high at 100 yds. Some I go 3" high at 100yds, depending on the trajectory and what distance I expect.