These numbers are not adjusted to inflation. They are base numbers compiled from Cots Contracts and www.thebaseballcube.com via retrosheet.org. All graphs show data from 1995 through 2020. Attendance numbers are through 2019 due to Covid-19 pandemic. 2020 payroll data is adjusted for the shortened 60 game season.
First overall Cleveland Indians payroll vs MLB yearly average since 1995
All MLB team payrolls vs team average attendance over five years (2015-2019). R-squared is 0.525