Back to homeWhat are the changes to the formula?Updated by PTC 3y agoThe formula which was used for the annual fare review exercises between 2018 and 2022 was:Was this answer helpful?NoYesYour opinion matters! Be the first to vote.Related questionsWhat are the changes to the formula?What are the changes to the formula?What are the changes to the formula?What are the changes to the formula?Need more help?Get in touch