Problem
Peter operates a garage which provides customers with car repairing services. In March 2016, he bought a 5-year-old second-hand car from his customer at a price of $85,000. He paid his worker $4,000 to repair and clean up the engine, and then successfully sold the car to another customer for $96,000 in June 2016.
How large is the contribution to 2016 GDP by the economic activities described above?