That doesn't tell much by itself because the base pay is a crucial part of the context. A 100% raise on $7/hour still results in a barely livable wage. A 20% raise on $20/hour is decent.
I can assure you that practically no one is paying $7/hr. If they are, I can guarantee they don't have any employees because they all left and went up the street to get $13.00 to flip burgers.