This is a huge percentage. Compare that with the number of people living in poverty in your community to get a better picture.
Once again, compare this to your community. Extreme poverty means that you have trouble providing even the most basic of needs. Food, shelter, etc...
A number of bloggers have tried living on $1.00 a day. They found it extremely challenging, and they were only trying to provide their food for that- forget about the housing and other needs.