(2) Without limiting the scope of ORS 646.705 to 646.805 and 646.990, it is the legislative purpose that it apply to intrastate trade or commerce, and to interstate trade or commerce involving an actual or threatened injury to a person or property located in this state. The decisions of federal courts in construction of federal law relating to the same subject shall be persuasive authority in the construction of ORS 646.705 to 646.805 and 646.990. [1975 c.255 §3; 2001 c.415 §1]