Versions of s. 147.1(1), definition “permitted corrective contribution”, para (b)

the amount determined by the formula E − F where E is 150% of the money purchase limit for the calendar year, and F is the total amount previously contributed in respect of the individual under subsection (20) to the provision, or to any other money purchase provision, if a participating employer under the provision or a predecessor employer has been a participating employer in respect of the individual under that other provision; (cotisation corrective permise)