please let me know what i am missing.

Sonic Corporation purchased and installed electronic payment equipment at its drive-in restaurants in San Marcos, TX, at a cost of $45,900. The equipment has an estimated residual value of $1,800. The equipment is expected to process 273,000 payments over its three-year useful life. Per year, expected payment transactions are 65,520, year 1; 150,150, year 2; and 57,330, year 3 . Required: Complete a depreciation schedule for each of the alternative methods. 1. Straight-line, 2. Units-of-production. 3. Double-declining-balance. Complete this question by entering your answers in the tabs below. Complete a depreciation schedule for the straight-line method. (Do not round intermediate calculations.) Complete this question by entering your answers in the tabs below. Complete a depreciation schedule for the units-of-production method. (Do not round intermediate calc answers to the nearest whole dollar.) Complete this question by entering your answers in the tabs below. Complete a depreciation schedule for the double-declining-balance method. (Do not round intermediate calculations.)