The data for an investment center is as follows: January 1, 2022 December 31, 2022 Current Assets $ 434,000 $ 834,000 Plant Assets 3,034,000 3,834,000 The controllable margin is $833,940. Compute the return on investment for the center for 2022. (Round answer to 1 decimal place, e.g. 52. 7.) Return on Investment :| %