Open Question: what is a reasonable total management labor %?

Overall what is a realistic target percentage of gross sales for a company when considering their total management labor budget? As it relates to the restaurant and entertainment venue industries. The company I work for is just starting to grow and as we do I am in a critical role that needs to help police these numbers, which in my opinion is currently being set to low in our system in the name of low cost. The problem is that from where we have come to where we are now, the revenue difference is huge as is the need for greater talent. thoughts?