The UCC balance for a firm's automobile fleet at the end of 2012 was $30000. There was one truck in service at this time. At the beginning of 2013, the firm purchased two trucks for a total of $70000. At the beginning of 2015, it purchased another truck for $20000. At the beginning of 2016, the truck owned in 2012 was sold for $11000. The CCA rate for automobiles is 10%. What was the firm's UCC balance at the end of 2016