I've found here revenues and costs of all Serie A clubs.
http://luckmar.blogspot.it/2013/03/i-costi-e-i-ricavi-della-serie-a.html
From left to right there are revenues, players and staff wages, total costs, wages/revenues percentage, wages/costs percentage, date, competition.
As you can see both Milanese clubs earned more in last year but mostly because of their CL participation. This year Inter will probably stay under 200M while Milan can achieve even better results because of Thiago Silva and Ibrahimovic sales. Milan's wages will decrease as a result of players departures this summer. They will still record loss and significant one but less than last year. Inter on the other hand will have plenty of difficulties. Absence from CL for 2 years in a row will make an impact on their commercial revenues as well. They will receive less money from marketing, shirt sales and TV rights among other things. The clubs which surprised me the most are Napoli and Genoa as I didn't think they are able to record such a high revenues.
Around 59% of the revenues and 51% of all costs are spent and related with players wages. Other 49% of the costs are amortization, external services such as accommodation, transport, supplies, lease, insurance, security etc and financial expenses.
Overall league spends more than it earns. Out of 300M loss, around 210M is related with Juve (50M), Milan (75M) and Inter (85M) which is 70%, and their share in Serie A revenues 715/2024 are 35%.