How would I make this fit in the bottom right corner regardless of window size?

I'm trying to figure out how I can make this ImageLabel fit in the bottom right corner of a player's screen, regardless of their window size. How would I do that?

	local helmet = script.Parent.Helmet
	helmet.Position = UDim2.new(0.9, -422, 0.8, -156)
	helmet.Size = UDim2.new(0, 100, 0, 100)
	helmet.Visible = true

There is an equation you can use to get a GUI to be in the bottom right corner of the player's screen.

gui.Position = UDim2.new(1, -gui.AbsoluteSize.X, 1, -gui.AbsoluteSize.Y)

Since we know the size of the X and Y values of the helmet GUI will always be 100 pixels since you've set it in the script, we can just do the following for the helmet GUI's position:

helmet.Position = UDim2.new(1, -100, 1, -100) --Places GUI in the bottom right corner, regardless of window size.

What if we used Scale for the size instead? Well, we just use the AbsoluteSize property instead. AbsoluteSize is a property that has a Vector2 value that shows how big the GUI is on the player's screen.

helmet.Position = UDim2.new(1, -helmet.AbsoluteSize.X, 1, -helmet.AbsoluteSize.Y) --Places GUI in the bottom right corner, regardless of window size.

There is one problem with your code when doing this. If players re-size their game window, the GUI would not move to match the new game size window in game. This will be fine when using the offset values of a UDim2, but when using the scale values, you will need to keep changing the position to reflect the AbsoluteSize difference.

You could use events such as the Changed event to make this work.

helmet.Changed:connect(function() --Anonymous function for the Changed event. An anonymous function is essentially writing a function in an event's connection line.
	helmet.Position = UDim2.new(1, -helmet.AbsoluteSize.X, 1, -helmet.AbsoluteSize.Y) --Places GUI in the bottom right corner, regardless of window size.
end) --Closing parenthesis to fully wrap the function in the connection line.

I hope my answer helped you. If it did, be sure to accept it.