Add profit-based sell-on clauses to Manager Career Mode

I’m really happy that sell-on percentages are coming back to Manager Career Mode in FC 27. However, I think there is still an important detail missing: profit-based sell-on clauses.

At the moment, a percentage seems to be applied to the entire amount of the future transfer. It would be much more realistic and interesting if clubs could negotiate a percentage of the profit made on the player as well.

For example:

- Player bought for €10M

- Player later sold for €50M

- 20% sell-on clause

With a percentage of the transfer fee, the former club receives €10M.

With a percentage of the profit, the former club receives 20% of the €40M profit = €8M.

I think both options should be available during negotiations:

- % of the next transfer fee

- % of the profit made on the next transfer

This would make transfers much deeper, especially when managing young players and developing them before selling them for a large profit.

It would also make long-term squad building more interesting, because you could decide whether to accept a lower initial transfer fee in exchange for a percentage of the future profit.

Since FC 27 is already improving the transfer system, I think this would be a great addition to make Career Mode even more realistic.

Please consider adding profit-based sell-on clauses.