In commercial you have residual income. If you don't tie that in what's the incentive for salesperson to sell repeat business? 10% is to high for this type of situation especially since I pay a higher starting salary. 36,000. The old cliche you get what you pay for gentleman.
If you want a high turn over and a man that doesn't care about his job.
Next , have a disclaimer to the salesperson about profit. Otherwise if I'm working percentage I'll close everything. I'll give it away ,cause 10% is 10%. What do I care if you make money.
Guys I can write a book on this. I know what's worked in commercial . AC knows that residential side. The yield is going to be higher. I personally think they work harder for sales.
We are producing more with less sales people than we had five years ago. Spending much less to do it as well.