sales commission

i'm in need of some advice on how much to pay a salesperson ... maybe first a price for what i would consider a good salesrep, then for the one i have been working with.
on almost all of the jobs he has "gotten" , i have ended up going out 2-3 times to clarify film selection, remeasure windows , educate the client etc. so is he a salesperson ?
i'm not complaining (too much) cause he has gotten his foot in the door and the probability for future jobs. i want to be fair but don't feel i should be paying a "sales" commission when i am ending up doing the selling.
do you have a set price or maybe a graduated scale for your sales ? also i have been (as most) chief cook and bottle washer for 16 yrs. but... i have built my company and reputation on quality installs and am being told " i can't get more than xx amount for a job cause they are getting several bids.
i feel like i'm having to compete with companies whose installations are far from what could be considered as professional , and at a price reminicent of the 80's.

we are going to have a meeting next week to iron out some details ,so am open to suggestions.
lastly , where would you look for a professional sales person and what would be expected as a commission for one?

thanks and have a happy , prosperous, and blessed new year .

I'd give a salesperson no more than 30% of what is left when you take out the cost of the film, he could get 50% if installs with me.
But that is if I only go there with the right film whitch is precutt and just install the film.
"salesperson" that I have to follow up few times to end a sale could get 10-15% for the lead (depending on the difficulty of the installation and after the cost of film deducted)

30%? Heck no. The most I will give is 15%. Then they can have 75% of the "pad" (minumum ppsf is x and they sold for more). I think my pay scale is quite generous. I have one sales guy that helps with sales part time for me b/c he has another full time job, but for selling a few jobs a month really boosts his income.

!5% is very generous!! !0% is normal if the leads come to the shop and you give them to your salesman, but if he does cold call sales and generates his own sales out of nothing then giving a nice little bonus is good and keeps your salesman motivated!

thanks for the input ,i'm still sorting through everything trying to come up with an equitable figure so will take all into the equation

hey artist , where's your 1 key

10% no more & they have to go get em' if they discount the job from X per sq I deduct that from the 10%. If the leads call our shop or come in their mine.

give them a fixed film cost and labor cost then pay them a % of the profit over that...

I do my commissions on a sliding scale. I give them a price floor, at which they earn 10%. Every dollar per square foot over the floor will get them a higher percentage. It goes 10% - 15% - 20.8% - 28.6% - 36% - 41.7% - 45.8%

Now the floor is different for different films, like security films vs. hanita Tek, but the sliding scale stays the same. I have it all worked up in an excel program, but I just made sure that at my floor I was able to pay for film, labor and profit on 90%.

In my experience 10-17 percent of the of the job. If you pay to much commission, the work isn't worth the profit.