HIgh School Program, middle school, club?? Freshman, JV and Varisty?? - There is probably a rough number cost per HS athlete by sport on average. I would think your best source for these numbers are going to be an AD, Principle, or Super Independent
Number of Paid Coaches?? $1 annually and up
Uniforms, practice gear, singlets and warm ups, head gear shoes, first aid kit, at least nose plugs, other supplies, mat cleaner, mat mops, ankle bands, score clocks, stop watches, score books, etc
Travel budget and bus driver - number of 2 day tournaments - distance and over night stays (meals and lodging)
A FEW things for you to look over
http://www.pvcsd.org/BOE/budget/pdf/Athletics_Budget.pdfPUTNAM VALLEY ATHLETIC DEPARTMENT 2008-09 BUDGET ANALYSIS (10 year old study or report)
https://www.acalanes.k12.ca.us/domain/462https://www.acalanes.k12.ca.us/cms/lib/CA01001364/Centricity/Domain/462/wrestling.pdf2017/18 budget numbers
(wrestling specific ideas)
http://www.nfhs.org/media/1017693/managing-an-athletic-budget-evers-mohney.pdfmuch older data but some good line items to look at