How much do collectible toy store owners earn per month?

Would anyone know how much (average) collectible toy store owners earn monthly? A rough estimate would be good. Im thinking along the toys of hasbro. If they retail, how much would they earn assuming that they sell the right toys. I am aware that it will depend on many variables but i just want a rough estimate. Gross profit is what im looking for. Thanks so much!|||An owner of a business does not "earn". He decides how much he should allow himself each month out of the profits he makes as a "salary" and takes that amount. An owner of a new business is likely to take a very small amount for himself to allow the business itself to develop