Decoration question: How much does the painter’s labor cost?

1. For wall painting and painting, I buy the materials myself. How much is the labor cost per square meter? I hope the labor cost is as low as possible. In Huizhou--------------you also need to buy sandpaper yourself. Glue and those auxiliary materials. The labor cost is about 10 yuan. Zhuhai area 2. Wood paint, you buy all the main and auxiliary materials yourself. The labor cost is about 8 yuan. 3. Paint is calculated based on the expanded area. It is not a square calculation based on the plane.