His pay before taxes and fees is $12.50 x 40 hours = $<<12.5*40=500>>500.
He pays $500 * 0.20 = $<<500*0.20=100>>100 for taxes and fees.
Then he had $500 - $100 = $<<500-100=400>>400 remaining money.
He takes out $400 * 0.15 = $<<400*0.15=60>>60 for his gummy bears.
So he's left with $400 - $60 = $<<400-60=340>>340.
#### 340