Not many here grew up in Switzerland. Not many in Switzerland either. Prices are high but habits are different. Many old Swiss that saw both world wars never ate in restaurants. This place was a poor place in a landlocked country. Then the wars came and with that the wealthy immigrants. Good news is that they keep coming and they are used to restaurants, expensive cars and golden horses. Swiss are not. That's why they charge a lot. It simple does not matter how much you charge. The Swiss bring their trash out themselves and cook themselves. Same for accounting.
I have you two of my contacts. Please let me know if their quote are good. If not, you email me and I can find some more. Trust me, the wall painters don't pay 6k for accounting either.