What should the customer know about your pricing (e.g., discounts, fees)?
Depending on how well the walls are prepared and the quality of the material, the cost of the work also depends. For example: there is a material (wallpaper) that does not react at all to water and glue. That is, no matter what you do with them during the installation process, these wallpapers stretch well and each panel connects well to the next panel. There are wallpapers that are very easy to tear, and there are wallpapers that cannot be installed with regular glue. Etc. I have given only a small list of what we have to deal with.