How would you calculate the painting expenses for a Home Office in Geneva, excluding ceilings, 2 doors, and 1 windows, with an area of 10m x 5m?

The painting expenses for a Home Office in Geneva, excluding ceilings, 2 doors, and 1 windows, with an area of 10m x 5m, would be calculated to total CHF 653.00.

*) 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.