Can I see how much my whole wardrobe costs?

You can see the total value of your wardrobe in stats. Go to Wardrobe and press the graph icon next to your profile picture and you will see the cumulative total of your wardrobe displayed. You need to enter how much your clothes cost to get an accurate total. To do this, head to Wardrobe>Items and scroll below the image of the item. Edit the price in the ‘Price’ field.