84.3.1.In the case of cancellation or revocation of a restricted licence referred to in section 76.1.1 of the Highway Safety Code (chapter C-24.2), other than a licence exclusively in class 8, the amount of the reimbursement of the duties is the product obtained by multiplying the monthly duties calculated in accordance with the third paragraph of section 73.4.1 by the number of months, excluding parts of a month, between the date of cancellation or revocation and the due date for the payment of the amounts referred to in the first paragraph of section 93.1 of the Highway Safety Code had the licence not been cancelled or revoked, or the date on which the licence was to expire, whichever occurs first.