This was established by Pius V in his Bull On exchanges.
Even if Pius V forbids in his Bull that the banker fix from the beginning, or whenever, a standard interest rate, even in the case of absence of payment, as Navarro says when he declared these same words in the number cited, this is based on the hypothesis that it is collected for veiled usury and not for profit ceasing [that is a consequence of] the delay in payment.
To prevent any usury from taking place on account of late payments, in the same Bull On exchanges Pius V prohibits exchanges made to any but the next fair, if the bills of exchange were signed for a place where these were being celebrated.
He had the same authority to make changes in the Mass as his predecessor Pius V had four centuries earlier.
Yes, they are both licit rites of the Church, but the permission of the diocesan bishop must be obtained in order to celebrate licitly the Mass of Pius V.