Can someone please help me with this question. I'll upvote for a fast response.

A retailer is setting the price of a laptop computer. He is corsidering using either a 4% sales margin or a 7.5% cost mark-up method. What would the selling price be, if his cost of sales is $6008 Select one: a. $625 margin or $645 mark-up b. $645 margin or $625 mark-up se. $624 margin or $645 mark-up d. $645 margin or $624 mark-up