The Regional Master Franchise in Indiana does not disclose sales figures of their 59 total units. They did include that they added 17 new JAN PRO Unit franchisees in the fiscal year of 2019.
However, we can make an estimate based on JAN PRO of Central Indiana‘s Income Statement:
JAN PRO of Central Indiana had royalty fee revenues of $199,676 and charged 10% of gross billing for the previous month.
Therefore, in total, all 59 JAN PRO units in 8 months made around $2 million. So $2 million divided by 59 units, has an average Gross Billings on a year adjusted average of roughly:
$42k
Please note this is just an estimate and actual figures are likely higher because 17 new locations opened in the fiscal year of 2019.