On January 1, 2020 Terrys Towing Service owned 2 tow trucks valued at $120,000. During 2020, Terry's bought 2 new trucks for a total of $140,000. At the end of 2020, the market value of all the firm's trucks was $236,000. What was Terry's gross investment? Calculate Terry's depreciaton and net investment: Terry's gross investment during 2020 was.