(a) the amount by which the aggregate, for the year, of pensionable self-employed earnings and pensionable earnings as a family-type resource or an intermediate resource exceeds the greater ofi. where no deduction at source has been made for the year in respect of the self-employed worker, family-type resource or intermediate resource on account of the employee’s base contribution under this Act or a similar plan, the amount of the personal exemption for the year or, in any other case, the amount by which the personal exemption for the year exceeds the aggregate of all amounts each of which is the pensionable salary and wages for the year in respect of pensionable employment under this Act or a similar plan, and
ii. the amount by which the total of the following amounts exceeds the aggregate of all amounts each of which is pensionable salary and wages for the year in respect of pensionable employment under this Act or a similar plan:(1) the personal exemption for the year,
(2) the salary and wages on which a base contribution has been made for the year, and
(3) the salary and wages on which a base contribution has been made for the year under a similar plan; and