Lance's Truck Stop purchased a new automatic truck washing machine for $135,000 at the first month of last year. Lance estimates that the machine will last for 10 years, after which time it can be sold for $35,000. Lance also estimated that a total of 50,000 trucks would use the machine before it was salvaged. During the first year 7,000 trucks were washed and in the current year another 9,000 were washed. Please prepare the depreciation schedule for the first two years using the 1. straight-line, 2. units-of-production 3. double-declining-balance, and 4. sum-of-years' digits methods