How would you calculate the painting expenses for a Children's Room in Biel, including ceilings, 2 doors, and 2 windows, with an area of 9m x 9m?

The painting expenses for a Children's Room in Biel, including ceilings, 2 doors, and 2 windows, with an area of 9m x 9m, would be calculated to total CHF 925.00.

*) 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.