Process Manufacturing - For beverage industry

How can i setup ERP for manufacturing process where raw material consumption is not fixed i.e it varies unproportionally with the output quantity or items to manufacture quantity? For eg. The usecase is for 1 ltr of Cocacola , sugar required is 50 gms but for 2 ltr , sugar required is 65 gm instead of 100 gms?

What is the workareound ? Can anybody help?

But every time you produce 2lt you put rhe same amount of sugar right?