How do you accurately estimate the painting expenses for a Bedroom in Lucerne with including ceilings, 2 doors, and 2 windows, covering an area of 8m x 8m?

Accurately estimating the painting expenses for a Bedroom in Lucerne with including ceilings, 2 doors, and 2 windows, covering an area of 8m x 8m, involves other factors but you need to budget for around CHF 906.00.

*) The calculations are approximate, based on a room height of 2.4m, and include one coat of paint. The price covers only the labor, excluding any services or materials.