Can you provide me the workings for this question.

The law firm of Regal and Porter is examining its client base to determine how profitable its regular clients are. Its analysis indicates that Hawthorne, Inc. paid $179,200 in fees last year, but cost the firm $208,600 ($168,000 in billable labour, supplies, and copying, and $40,600 in allocated common fixed costs). If Regal and Porter dropped Hawthorne, Inc. as a client, and all fixed costs are unavoidable, how would profit be affected? Selected Answer: @ C. Decrease $11,200 Answers: A. $0 B. Increase $29,400 C. Decrease $11,200 D. Decrease $179,200