He lost 500*.8=<<500*.8=400>>400 pounds from his bench

So his bench went to 500-400=<<500-400=100>>100 pounds

After training it increased to 100*3=<<100*3=300>>300 pounds

# Answer

300
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
John injures his shoulder while lifting weights.  After the injury, his bench press goes down 80%.  After a bit of training, he manages to triple the weight he can bench.  If he started with a 500-pound bench press, what is it now?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
300
John injures his shoulder while lifting weights.  After the injury, his bench press goes down 80%.  After a bit of training, he manages to triple the weight he can bench.  If he started with a 500-pound bench press, what is it now?
train