Trebecker Construction plans to discontinue its roofing segment which last year generated a contribution margin of $65,000 and incurred $90,000 in fixed costs. If the segment is discontinued, half of the fixed costs will be avoided. What effect is expected to occur to the companys overall profit?

		A decrease of $20,000
		A decrease of $15,000
		An increase of $15,000
		An increase of $20,000
		An increase of $30,000