s.21 — Factor to be applied

21. (1) The factor to be applied for the purposes of paragraph 6 of subsection 29 (2) and paragraph 2 of subsection 30 (2) is determined by dividing the total rents of the rental units in the residential complex that are subject to the application and are affected by the operating cost by the total rents of the rental units in the residential complex that are affected by the operating cost.  ;