On the 3rd August, United Utilities PLC paid out 26.49p per share.
https://www.unitedutilities.com/
The total number of voting rights in the company stood at 681,888,418
Thus:-
681,888,418 x 26.49p = £180,632,241.93
£180m of cash to shareholders.
http://www.shareshop.hsbc.co.uk/shareshop/security.cgi?csi=10096