Will IDS try living on £53 a week?

I love this petition from change.org!

This petition calls for Iain Duncan Smith, the current The Work and Pensions Secretary, to prove his claim of being able to live on £7.57 a day, or £53 a week.
Iain Duncan Smith would be called upon to live on this budget for at least one year. This would help realise the conservative party's current mantra that "We are all in this together".
This would mean a 97% reduction in his current income, which is £1,581.02 a week or £225 a day after tax.