Charlene
The site won't give prices; the CDCs are self-employed and are allowed to sell the products at whatever prices they decide, within set limits. My CDC sold sachets for £1.70 and bars/tetras for £1.93. So multiply as below to find out the daily cost.
x4 if you are over 5' 8"
x3 if you are under 5' 8"
x2 if you are on 810 / 1000 / 1200 cals
x1 if you are on 1500 cals