When John Lacey’s car was stolen, he filed a complaint with…

When John Lacey’s car was stolen, he filed a complaint with the police. The police successfully traced the car to a professional auto thief and returned it to John. When John got his car back, he realized the thief had installed a new engine, new tires and put a new stereo and sound system into his car. The value of John’s car is said to have undergone a(n)