Original sentence: Overend, Gurney & Company was a London wholesale discount bank, known as "the bankers' bank", which collapsed in 1866 owing about 11 million pounds (£828 million at 2003 prices.Until events at Northern Rock in September 2007, it was the last run on a British bank
Edited sentence: Overend, Gurney & Company was a London wholesale discount bank, known as "the bankers' bank", which collapsed in 1866 owing about 11 million pounds, equivalent to £981 million at 2008 prices.. Until events at Northern Rock in September 2007, it was the last run on a British bank