Answer:
The total amount of money Mr. Wong received from dividends is $118 * 2 = $236.
The total value of Mr. Wong's shares before the bonus was 5,000 * $1.60 = $8,000.
The bonus he received was 3.3% of $8,000 = $264.
So, the total amount of money Mr. Wong received from the investment was $236 + $264 + $9,100 = $9,600.
The return on investment for Mr. Wong is the total amount of money he received from the investment divided by the amount of money he initially invested, expressed as a percentage.
So, the return on investment is ($9,600 / $8,000) * 100% = 120%.
Therefore, the return on investment for Mr. Wong is 120%.