Precise formulas are reserved for chemists. It is really in this arena that you can be told the exact amount of something. .08 oz. of ingredient X will result in a postive reaction - .09 or .07 oz. of ingredient X and you get something different - the cold hard science of precision works in this case.
Training is not a series of precision formulas - it is a blend of art and science.
How many of Exercise X? (I get this question a LOT!) Honest answer - I have NO IDEA. Maybe 3 - maybe 15 - maybe Zero - there are way too many factors involved to be precise. Medical history, injury history, exercise history, mental, emotional and nutritional factors and mobility and neurlogical factors all come into play - so how do I give you a precise recommendation if I don't know you and know those factors that I listed above?
What you get are guidelines - not precise formulas. All that matters are the results. Train with the results in mind - not a precise formula.