Grape Juice Jelly question

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1

I am trying to make grape jelly from juice and I found 2 different recipes. The first one is
1 box sure-jell
2 cups grape juice
1 cup water
3 1/2 cups sugar

the second is

1 box of sure-jell
5 cups of juice
7 cups of sugar

Why such a huge difference with the same about of sure-jell???

I have never made jelly before and I dont want to screw it up. HELP!!!:confused:

2

Use the recipe on the paper insert from the pectin box, which would seem to be the 2nd recipe listed.

Iā€™m not sure of the origin of the first one, but it almost appears to be a freezer jelly recipe.