How would you calculate the painting expenses for a Home Office in Lugano, excluding ceilings, 2 doors, and 2 windows, with an area of 7m x 3m?

The painting expenses for a Home Office in Lugano, excluding ceilings, 2 doors, and 2 windows, with an area of 7m x 3m, would be calculated to total CHF 228.00.

*) 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.