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?
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
#### 300