The Cost of Bliss, by Kelsey Conkling

Jane has a pretty decent life.  Her family lives in a nice suburb and has enough money for her to enjoy nice clothes and the things she wants.  When she sees people like Preston, who gets on at her bus stop but lives in the poorer subdivision next door, she is thankful she's not like him.

But then her family suddenly loses their home and is forced to move in with her great grandmother.  She's been blissfully unaware that her family wealth was an illusion and that her parents were living beyond their means.  They are poor and in deep debt.  Now Jane has to face her old friends with the truth that she isn't who she thought she was.  And with her parents overwhelmed by their change of fortunes, Jane finds she can't even count on them.  But there is one person she finds she can count on -- Preston.

A briskly paced story that tackles class and poverty for middle schoolers.  Jane's quick turn of fortune grabs your attention and provides a relatable protagonist in an unfamiliar setting.  At the same time, I found the parents really selfish and horrible and over-the-top.  It is only because Preston and his mother save the day that it is bearable.

The story ends on a positive and hopeful note that encourages readers to think about, that no matter how bad things are, there's always someone out there who needs help more than you.  Sweet.