Nelson Company gathered the following information on power costs and factory machine usage for the last six months:

Month

Power Cost

Factory Machine Hours

	January	$24,400	13,900
	February	29,200	17,600
	March	29,000	16,800
	April	22,340	13,200
	May	19,900	11,600
	June	14,900	6,600

Instructions Using the high-low method of analyzing costs, answer the following questions and show computations to support your answers. (a) What is the estimated variable portion of power costs per factory machine hour? (b) What is the estimated fixed power cost each month?