What is the ratio of whey to casein protein in the Bubs formulas?

Infant formula typically has a modified whey: casein ratio (60:40) to bring it closer to that found in breastmilk which is whey-dominant. 

The Whey to Casein ratio changes with the formula and with the changing nutritional demand for babies, for example in Stage 3, it drops to the natural levels of whey to casein in milk of around 80:20.