Can Home Depot impose a sales quota?

I've worked at a Home Depot in Quebec, Canada for the last four years and technically there is no imposed sales quota assigned to employees.

HOWEVER, each department has an "estimated sales plan" for every day of the year based on the sales recorded that same day 1 year ago.

So even though employees have no actual quota to meet, these department sales plans are passed on to each employee and it is expected of them to reach the plans.

Individual sales are recorded and discusses with empoyees one-on-one with department managers roughly once a month. Dollar sales amounts are added up for the month for each employee and devided by the number of hours of labor that employee worked that month to determine your "sales per hour".

example:

Part time employee working aprox. 25 hours a week. Totalling 100h a month.

$23000 in sales recorded for January.

23000 / 100 = $230/h employee.

A "Good" employee in my store and department (flooring) is expected to generate at least $200/h.

If you look at any available Sales Associate position on the Home Depot website, none of them mention anything about making sales and reaching quotas, only providing exeptional customer service and satisfaction. Yet, i've been warned by the department and store managers on my sales per hour not being satisfactory enough. If that isint an imposed quota, i don't know what is...

This is again based on stores in my region, it may be different in the US. At least I hope it is.