You should look in Tools & Settings. You should look in the Campaign tab. You should look in Performance Center. You should look in the bid strategy report. The correct answer is: You should look in the bid strategy report.
Because the bids were too high to show any performance. Because bid strategy performance isn’t reported in custom columns. Because the bids were too low to show any performance. Because bid strategy performance isn’t one of your business goals. The correct answer is: Because bid strategy performance isn’t reported in custom columns.