Speaking generally, you'll find that full contracts include bonuses, loyalty payments etc on top of the 'flat wage'. These provide an incentive for players to stay at the club and not ask for a transfer.
If we sell a player without them putting in a request, normal practice would be to pay or negotiate an amount to compensate for bonuses etc.
I think you'd find that the average weekly figure over Raheem's full contract would be a lot closer to £350k than £200k.
Either way, it's a ridiculous amount, particularly for a player who has done very little over this season to justify getting even £350.00 a week.