Citigroup's CFO Mark Mason has provided a mixed outlook for the bank's financial performance. Mason expects a 20% rise in investment banking fees for the third quarter, driven by a pickup in M&A activity. However, he noted that net interest income guidance looks modestly down year-over-year and consumer payment rates are coming down. Additionally, consumers are shifting spending from discretionary items to basic staples, and delinquencies are starting to crest. Net credit losses are on the rise in Citi’s large cards business. Despite these challenges, Mason remains optimistic about achieving a medium-term return on tangible common equity (RoTCE) target of 11%-12%.