Cost per wearing (outfit, e.g., shirt/blouse, pants/skirt, jacket, dress, coat, etc.)
Figure cost per wearing for entire outfit or for each individual piece if parts will be worn individually. Estimate how many times in one year each purchased garment will be worn. (Think about whether you would really wear an item once a week for 52 weeks, for example.) Divide the item cost by the number of wearings for an estimate of the cost per wearing to help decide if the purchase was really a good buy for the purpose.