Celebrity chef Robert Irvine says these are the top 7 factors that determine whether a restaurant succeeds or fails

Chef Robert Irvine has spent the past five years attempting to save 140 failing restaurants across America for the Food Network show "Restaurant: Impossible," now in its 13th season.

Of the 137 restaurants whose episodes have aired, 82, or 60%, have closed since their makeovers, according to the blog Food Network Gossip.

That's actually not bad, since these restaurants were so poorly managed that Irvine and his team only took the job if there was essentially a 100% chance of imminent failure.

In fact, according to a frequently cited study by Ohio State University on failed restaurants, 60% do not make it past the first year, and 80% go under in five years.

Business Insider recently spoke with Irvine, who shared his top factors that result in a restaurant thriving or flopping.