I am in Quebec, north of Montreal.
I now only do mine and my daughter's drive but used to be the 'go to' snow contractor and know most of the local jobbers.
Usually we have 2 rates. W/E only and every event.
At present the guys range from $500 for a short drive to $1000. for the longer ones with about 20% more for every event.
No sanding. Longer ones are almost 2-3000 ft.
Myself I used to eyeball and estimate how much time I needed per event as some were straight forward (like drive in and out=5-10 mins) others while shorter could take 1/2 hr.
A whole lot depended on the actual drive configuration. Straight? short? long? where to push that snow?
Zig and Zag between trees and rocks? hills? they flag? I flag?
Then once came about 36" of snow late in the season and that was higher than my plow blade. Even with chains on all 4 wheels of my 4 X 4 3/4 ton GMC. Man I sweated that one, but I managed. LOL, the local newspaper actually interviewed me over that one.
Truck plow was the desired method due to distances between drives but a blower was needed from time to time to widen and make space.
We tended to figure on 25 events per year and plowed only over 2". never included sanding.
If sanding was included folks always wanted more.
No contractor ever includes sand, (some as extra and generally only on demand).
I never got rich at it but with 20-25 drives I generally netted $4-5000, sometimes less if I broke too many axles.(usually 1-3 per year and mostly rt front.)
Snow is about the most cut thought business there is. I was lucky, my clients were extremely loyal and fair. On the other hand I tried to be fair with them as well. In the latter years I only billed at the end of the season depending on the conditions and my efforts.
One big problem is that you almost need 2 pieces of equipment as machinery can and will break at the wrong moment and you do have a commitment.
At the time I did plow I aimed at earning about $50/hr gross.