How is the new overtime deduction calculated? The talk is that those making time and half after 80 hours only are able to deduct the extra 50% per hour, not full 1.5.

This is referring to those that are FLSA non exempt. The question is if I make 15k in OT, is all 15k deductible (ignoring income limits) or is it only 5k (the extra 1/2 time per hour)?