In its full year results to September 30 Cook reported an underlying group profit of £308 million, down from £310 million last year.
Profit after tax was down from £19 million to £9 million.
However the UK business “continued to strengthen”, achieving a record underlying Ebit (earnings before interest and taxes) margin of 6.4%, growing by £33 million to £152 million.
Group revenue was also down slightly, from £7.83 billion to £7.81 billion and group underlying gross margin rose from 22.6% in 2015 to 23.4%.