Here, bookmakers Paddy Power crunched the numbers to take a look at each Championship club and their net spend over the last decade – and there are some pretty shocking results.
However, not every second tier club has net spend in the minus column - scroll down and click through the pages to view the full club-by-club break down:
9. Middlesbrough
Total net spend over the last 10 years: -£30,070,000 Photo: Alex Livesey
10. Norwich City
Total net spend over the last 10 years: -£14,200,000 Photo: Alex Pantling
11. Reading
Total net spend over the last 10 years: -£11,480,000 Photo: Alex Davidson
12. Wycombe Wanderers
Total net spend over the last 10 years: +£1,179,000 Photo: Marc Atkins