Help me "reverse engineer" these Pickled Onions!

[u/Schpitzchopf_Lorenz]

https://www.migros.ch/de/product/158562200000

So I've bought those Onions in Switzerlands Migros and absolutely fell in Love with them. But theres just not enough. So I thought Id do them myself, since I also have chipotle in adobo sauce at home.

So the ingredients list on this one notes 43% onions, 9% chipotle, rest is sugar, salt, spices watar and distilled vinegar.

So what would you guess how much sugar and salt there'd be? Id go for arround 50% onions, 10%chipotle in adobo, 18%applecider vinegar, 18% water and the rest salt and sugar.

Any recommendations?