Mr McDonnell laboured to respond after Mr Neil tried to question him about the current liable interest rate during a post-budget interview
The Labour frontbencher analysed to escape the line of questioning by offering to «send a note on the figure» at the end of the BBC Commonplace Politics programme.
Following an increasingly heated exchange, the seasoned BBC presenter blasted: «If you don’t know the figure, then you don’t know whether it is going up or down.»
Mr McDonnell crack ated to defend himself, saying: «At the moment it’s £46 million. it’s gone down earlier but now it’s gone up. I remember the trend.»
Andrew Neil said John McDonnell could not be acquainted with the interest rate trend if he ignored the figures
Current spending on the lending fees of the British national debt stands at £46 million per year.
Chancellor Philip Hammond advertised his Autumn Budget for 2017, putting particular emphasis on Brexit and shield.
The headline announcement concerned stamp duty which was completely sacked for the first-time buyers of properties under £300,000.
It will effectively give first-time customers purchasing in high-value areas a £5,000 discount.
With the new measures, 95 per cent of first-time purchasers will see at least a cut in the amount of stamp duty, with 80 per cent extending none at all.
He also pledged an extra £44bn to the housing market as a remainder the next five years after admitting that “house worths are increasingly out of reach for many.”
In regards to Brexit, Mr Hammond announced the Rule would put aside £3bn – with more available if needed.
He said: “We eat already invested almost £700m in Brexit preparations and today I am location aside over the next two years a further £3bn and I stand ready to allocate yet funds.»
He added Brexit Britain will «look forward, not back to front, to meet challenges head-on and to seize opportunities for Britain.»