How much is the Sonic brand worth?

Could you please elaborate on the current valuation of the Sonic brand? I'm curious to know how much it's worth in the market today, considering factors such as brand recognition, customer loyalty, and financial performance. Additionally, I'd be interested in understanding any recent trends or changes in the brand's value that may have occurred over time. Is there any information available on the brand's potential for future growth and how it compares to other similar brands in the industry?