As it stands (all values taken from the TransferMarket)
We have lost approximately £19 million in value to the playing squad with the vast majority being Adam Armstrong but a couple of million in the departure of Bell, Evans, Holtby etc (not that anyone minded that)
We have the following first team players in the last year of their contracts: Lenihan, Brereton, Kaminski, Nyambe , Rothwell , Chapman and Davenport with a total market value of about £15 million. We would eligible for compensation on Nyambe, Brereton, Chapman and Davenport if they leave without a new contract and if they are transfered to a UK based team which maybe unlikely for Brereton.
The loanees bring us no squad value in the long term and in the short term it sound like we are spending a fair amount on their wages.
Putting that all together £19 million in players left this transfer window, £0 million came in so far and £15 million in players are currently set to leave at the end of the season, although there is still time for renewals. In a few words, looks bloody grim