Wenner Furnace Corp. bought machinery for $371,070 on May 1, 2012. This is estimated that it will have a helpful life of 10 years, salvage value of $19,950, production of 319,200 units, and working hours of 25,000. All through 2013, Wenner Corp. utilizes the machinery for 2,650 hours, and the machinery produces 33,915 units.
From the information provided, calculate the depreciation charge for 2013 under each of the given methods.