I need straight line, units of production and doble declining balance please.

Tails Corporation purchased and installed electronic payment equipment at its drive-in restaurants in San Marcos, TX, at a cost of $48,600. The equipment has an estimated residual value of $2,100. The equipment is expected to process 274,000 payments over its three-year useful life. Per year, expected payment transactions are 65,760, year 1; 150,700, year 2; and 57,540, year 3.