Sky high CPC for keyword

Just curious if anyone has any suggestions. I have a keyword I’m using with a bid of $1.12. Currently Amazon is telling me the suggested bid should be over $12.

I have 4 clicks and spent almost $30 with no sales.

How is it spending so much of my budget if my bid is only $1.12? Also, I deactivated the keyword because I’m not sure how to adjust since it’s already at 1.12, which I am fine with. As is, I only want to spend around my budget. Not the $7.28 cpc it is spending.

For context: I have my campaign settings at down bidding only, with 75% bid adjustment to be on first page top of search.