The worker’s wages depend on several factors. For example as a first step for requests made in Quebec, your application will be examined by the Quebec Ministry of Immigration, Diversity and Inclusion. They check whether the proposed wages correspond to the wages of a Quebec worker in the same job category with a similar level of experience.
If the job you are offering is covered by a collective agreement or a decree, the salary must comply with the provisions therein. Otherwise, the Ministry will refer to the  officiel document from d’Emploi Québec(article in French only) to establish the hourly wage.Finally, the same labour standards rules or the collective agreement apply to the foreign worker.