How have they come to 11 million?
In the UK they state a single persons level of income for a 'acceptable' living is £29,500 (bare in mind many people do live below this too).
That is a free person who buys the food they want, pays their own bills, rent/mortgage, own clothing and 'luxury' items (phones, internet, holidays, games consoles, music/arts etc...), has subscriptions, runs a car or pays for travel, has social days/events etc...
How can a person who lives a limited life in 1 room of a mass housing building, on pre-set micro budgeted meals, no luxury add on or associated 'fun' living costs cost over £344,000 per year?
I mean if you take running costs for a whole prison wing including electric, food and multiple salaried staffing (which is economically creating jobs) yes but he is just ONE prisoner. Even with staffing the staff costs aren't soley his.
The ministry of Justice reports the cost to keep a prisoner in their system is £32,716 annually at the moment. That makes it barely over 1 million for 32 years of incarceration and the cost are based on current inflation, they would be less in the past.
I don't think people should be so quick to accept 'shock' news paper articles as utter fact.