Answer : (B) after both markups (net) and markdowns (net)

Cost to retail ratio is the ratio of total cost of goods available for sale to the retail value of goods avaialable for sale. Here the value of goods available for sale is identified after making adjustments for both markups and markdowns. Markup is added to the inventory and markdown should be deducted from the inventory. After making adjustments for both markups and markdowns cost to retail ratio is calculated.

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