It suggests $0.1 per click if I am not mistaken. Which doesn’t guarantee an install. From my experience less than 25% of the clicks are converted into installs.
I don’t have experience with facebook and clicks for ads, I only ran campaigns optimized for installs and I set it to auto.
For those top countries I managed to get installs for $0.2 - $0.5 each.
You can set your campaign to be optimized for installs:
Bidding: Bid for mobile app installs Pricing: Your bid will be optimized to get more mobile app installs. You will be charged every time someone is shown your ad
This doesn’t allow you to set a maximum bid for an install but it says it’s optimizing the clicks so you get as many installs as possible. Obviously this means you can pay $0.1 or $10 for an install. Make sure you update your daily budget properly so you don’t spend more than you can afford.