How do you estimate the painting costs for a Bedroom in Zurich with excluding ceilings, 2 doors, and 2 windows, measuring 3m x 9m?

Estimating painting costs for a Bedroom in Zurich with excluding ceilings, 2 doors, and 2 windows, measuring 3m x 9m consider costing you CHF 456.00.

*) 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.