How to calculate bodyVelocity Force?

How can I calculate the equation to making my bodyForce make my part float. I would like to be able to use any sized part and I would like the BodyVelocity to neither make the part go up nor down. I just want it to make the part sit still in the air regardless of size.

wait(2)

local part = script.Parent
local bodyVelocity = part.BodyVelocity

bodyVelocity.MaxForce = Vector3.new(0, (part.Mass * game.Workspace.Gravity), 0) --?

Your script seems to be perfectly fine to achieve your goal; unless the part is receiving any external forces or addition of mass caused by other basepart objects!

Thank you. I was not quite sure if my equation was correct or not.