Cost to repair screen

[joeynox]

Does anyone know how much it costs to replace the screen on the 920?
brother dropped his from about 1 foot as he bent down to tie his shoe and if fell 1 foot and slide like another foot and the corner cracked and there's 20-30 scratches on the screen.

 

[joeynox]

Out of 4 people that I know personally 4 all have scratched screens. Mine isn't scratched because I have a screen protector on it but This gorilla glass 2 doesn't seem very durable