How £50bn of banknotes have 'gone missing'

Banknotes worth £50billion have gone missing in circulation according to the National Audit Office. The NAO said it could be held overseas or in savings that haven't been declared https://www.dailymail.co.uk/news/article-8745715/How-50bn-banknotes-gone-missing.html?ns_mchannel=rss&ns_campaign=1490&ito=1490