Here, we have a recipe that serves 4 people in the given ratio below;
Cider to Caramel syrup to Pumpskin spice = 4:1/4:1
Now to make for 8 people, we simply will multiply what we had in the original recipe by 2 since it was for 4 people initially
So the punch ratio for 8 people will be;
8 cups of Apple Cider
1/2 cups Caramel syrup
2 teaspoons of Pumpskin spice
For 12 people, we simply multiply what we had initially for 4 people by 3. This will be;
12 cups of Apple Cider
3/4 cups of Caramel syrup
3 teaspoons of Pumpskin spice