12.7.1 Subject to clause 12.7.2, the Relevant Proportion shall be adjusted:
12.7.1.1 in accordance with [schedule [ ] (Indexation Provisions)];
12.7.1.2 on the occurrence of the circumstances referred to in clause 16.5 or 16.6;
12.7.1.3 on the occurrence of the circumstances referred to in clause [18] (Benchmarking and Market Testing); and/or
12.7.1.4 on the occurrence of the circumstances referred to in clause 26.3.1
and as specifically provided for elsewhere in this Agreement.
12.7.2 Where the Relevant Proportion is to be adjusted in accordance with the terms of this Agreement, the adjustment shall be proportionate having regard to all relevant matters including but not limited to:
12.7.2.1 any change to the Unitary Charge;
12.7.2.2 the proportion of the Unitary Charge represented by the Relevant Proportion;
12.7.2.3 the effect on the Academy and the Company;
12.7.2.4 the effect on the Authority
and shall be reasonable in all the circumstances.