(2) weeks payable shall be determined as follows:
(A) Determine the weeks of benefits provided for the injury on schedule;
(B) determine the weeks of temporary compensation paid by adding the amounts of temporary total and temporary partial disability compensation paid and dividing the sum by the payment rate above;
(C) subtract the weeks of temporary compensation calculated in (d)(2)(B) from the weeks of benefits provided for the injury as determined in (d)(2)(A); and
(D) multiply the weeks as determined in (d)(2)(C) by the percentage of permanent partial impairment of function as determined under subsection (b)(23).
The resulting award shall be paid for the number of weeks at the payment rate until fully paid or modified. Under no circumstances shall the period of permanent partial disability run concurrently with the period of temporary total or temporary partial disability.