Not including Tiago since we were not paying his wages last season anyway, and guessing a salary of 2m for Toni, getting rid of those players will give us 20.1m in wage savings,
Add Aquilani (3.3m), Del Piero (3m, difference from old/new contract), Brazzo (2m), Rinaudo (750k), Traore (500k), Legro (750k, half his wage for his half season here), Lanzafame (600k, half his wage for his half season here) = 10.9m
Subtract 1.5m for Marchisio's wage increase (1m to 2.5m) = 29.5m in savings in wages compared to last season.
However, those players will need to be replaced.
The rest is media speculation and guess work.
Pirlo (4m), Ziegler (1.5), Lichtsteiner (2m), Pazienza (1.2m)
= now down to 20.8m in savings compared to last season.
Now we still need a LW, CM/DM, and a SS. At LM and CM/DM, they will receive at most contracts of 2.5m using their teammates as a reference point, while the SS could be 7.5m if that player is Aguero.
= 8.3m in savings on our wage bill compared to last season. Since the players salaries are earnings after tax, the real figure is a 16.6m euro difference in our wage bill compared to last season.