NOTE: This is a rough guide. You do not need to have 4 furniture pieces to be a "simple" room. Take these as bins. If you need more info, please talk to me and I'll help~!
Simple Room: 1-4 pieces of furniture; 1-2 wall pieces [poster, framed image, window]
Medium Room: 5-7 pieces of furniture, 3-5 wall pieces
High Detail Room: 8-12 pieces of furniture, 5-8 wall pieces
Room Price Calculator
Price is calculated as follows: Number of Characters + Room (+ Animation if applicable)
EX based off main example: 1 character (10$) + High Detail Room (48$) + Animation (+10$) = 68$