Over a four-year period, Matt Ewing purchased shares in the Oakmark I Fund. Use the following information: Investment Year Amount Price per Share 2016 $ 8,100 $ 58 per share 2017 8,109 43 per share 2018 8,100 34 per share 2019 8,100 50 per share (a) At the end of four years, what is the total amount invested? Total amount invested (b) At the end of four years, what is the total number of mutual fund shares purchased? (Round your intermediate calculations and answer to 4 decimal places.) Total number of mutual fund shares