On 12 March 2020 the following stocks were purchased: Verizon 100 shares at 50.97, Netflix 100 shares at 310.00, Facebook 100 shares at 153.30 for a total spent of 51,427.00. On 31 March the following stocks were purchased United Airlines 100 shares at 52.88, and Starbucks 100 shares at 62.82 for a total spent of 11,570.00. The amount spent in total was $60,997.00. Today these stock per share prices are: Verizon 100 shares for 55.28, Netflix 100 shares for 360.88, Facebook 100 shares for 175.07, United Airlines 100 shares for 32.84, and Starbucks 100 shares for 67.63. The current value of the stock is $69,170.00.

What is the final rate of return on the stock portfolio?