It cost 10-2=$<<10-2=8>>8 to replace each movie

So it would cost 8*100=$<<8*100=800>>800 to replace everything

# Answer

800
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
John decides to replace all his VHS with DVDs.  He can trade in his VHS for $2 each and then buy the DVDs for $10 each.  If he has 100 movies, how much does it cost to replace his movies?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
800
John decides to replace all his VHS with DVDs.  He can trade in his VHS for $2 each and then buy the DVDs for $10 each.  If he has 100 movies, how much does it cost to replace his movies?
train