Whey protein GYMON (vanilla flavor), 1 kg or Whey Protein MY PROTEIN GAINER, Vanilla Flavor, 2.5 kg?

Energy 398 kcal 388 kcal
Fat 6,4 g 6,2 g
of which saturates 3,7 g 1,3 g
Carbohydrate 11 g 50 g
of which sugars 5,5 g 2,6 g
Protein 73 g 31,4 g
Salt 0,5 g 0,4 g

Figures from the product labels. Green is the better value.

Whey protein GYMON (vanilla flavor), 1 kg
C
Whey protein GYMON (vanilla flavor), 1 kg
398 kcal Fat 6,4 g Carbs 11 g Prot. 73 g
Sat. fat 3,7 g Sugars 5,5 g
1 kg
Whey Protein MY PROTEIN GAINER, Vanilla Flavor, 2.5 kg
A
Whey Protein MY PROTEIN GAINER, Vanilla Flavor, 2.5 kg
388 kcal Fat 6,2 g Carbs 50 g Prot. 31,4 g
Sat. fat 1,3 g Sugars 2,6 g
2,5 kg