Brum spent £30m on 17 players last summer.
Their nearest "rivals" Wrexham & Huddersfield spent around £4m each.
Huddersfield made a net profit, unlike the other 2 who's net figures aren't different to their spend.
To put that spend in perspective, Coventry had the highest Net Spend in the league above and that was only about 2/3's the amount. And THEY were miles ahead of the rest in net spend terms.
Birmingham are the Man City of League 1 with no Arse, Liverpool, Chelsea, United, Newcastle, Spurs or Villa to lay a glove on them financially.