That is the same amount I got as well. Only sponsoring wife and no others.
Maybe someone else could clarify this as well as I'm not an expert.
You need to choose the place that you are sending your application to and it's not based on where you live it's based on what kind of application you are filing. Are you filing an inland or outland application. Personally my wife is not living in Canada so we filled the forms that were for people not yet living in Canada and this type of application must be sent to Missisauga. I believe an inland application is sent to Vegreville, Alberta but someone else might want to clarify this. What type of application do you have and where did you plan on sending it?