Moee, I'd post some formulas but it would just confuse you even more, as you need to know what your actual strike rate is, plus your todays race rating % and the tote %. But then you then you need to make final adjustments based on wait for it "equipartition of the deviation", this will tell you then which method of dutching you should apply. Remembering there is basically 6 different dutching methods that one uses.

Really on what you posted you need it modified.