Not sure where you live in the world but here in Australia at least I have felt the increasing grocery prices (depending on which basket of goods can be up to 100% over the past year). Take a look at coca cola/pepsi where prices have increased >60%.
Sure its not the 80% increase you mentioned but I think that everyone in the value chain is taking a hit (HLF too). To what extent HLF is impacted can hopefully be disclosed by them (if material). Freight costs/raw material costs are normally passed on through.
HLF Price at posting:
6.9¢ Sentiment: Hold Disclosure: Held