Each restaurant allows customers to "round up" their bill to the nearest dollar, and donate spare change to the Firehouse Subs' foundation.

Firefighters and franchisees thanked the community for their support on Wednesday.

"The foundation is so wonderful in that almost 90 cents of every dollar we help raise actually goes to you guys -- not administrative fees, doesn't go to corporate bills -- it goes to what it needs to go to, and that's a big deal for us," said Sarah Little, a franchisee.