Pricing in short should be figured $80-$120 per hour.
I do not figure a commercial parking lot at less than $100/hour
Driveways are hard to get to this number unless you can build a tight route so little time is spent driving.   Far more money can be bad plowing residential but with more difficulty.  A landscaper can [...]

The three most costly issues for a driveway are: length, number of turn arounds/garages, and gravel vs. paved.  These are the main criteria used for pricing.  Other issues to consider are where the snow will need to be moved to.  Some driveways allow for a straight push past the garage.  Yet others require back-dragging from [...]