Make the working solution first by following the directions on the bottle.
Dilution B is 1+7 (1 part HC110 working solution and 7 parts water).
A Paterson tank uses 10oz./300ml of fluid per 35mm film. That is 1.25oz/37.5ml of HC110 stock solution per 35mm reel/roll of film. 120 film needs 14oz per roll, if I recall correct.