Hurricane Irma devastated American businesses — here's what restaurant chains were hit hardest

Over the last week, Hurricane Irma devastated businesses in Florida and the wider Southern US. 
Chains including Sonic, Cracker Barrel, and Steak 'n Shake were forced to close locations as the hurricane moved north after battering much of the Caribbean. 
Investment firm UBS used a forecasted path of the hurricane to calculate Irma's expected impact on close to 300 companies.
UBS identified 90 companies who conduct more than 10% of their business in the impacted region. M