After filing for bankruptcy protection in February and closing nearly one-third of its stores, Borders now stands on the brink of a total liquidation, after a bidding deadline passed Sunday evening without anyone making an offer on the bookstore chain ahead of a bankruptcy auction planned for Tuesday. How did it come to this? Here, a brief guide, by the numbers, to the rise and fall of the nation's second-largest bookstore chain:

Number of years Borders has been in existence. It was once the second largest bookstore chain in the country, behind Barnes & Noble.

Number of stores Borders operated in 2005

Number of Borders stores still in operation

Number of Barnes & Noble stores still in operation

Number of Borders stores that were closed earlier this year, after the company filed for bankruptcy protection

$1.28 billion
Assets Borders listed in its bankruptcy petition

$1.29 billion
Liabilities Borders listed in its bankruptcy petition

$215 million
Amount Jahm Najafi, a private equity investor, offered for Borders earlier this month, in addition to the assumption of $220 million in debt. Creditors objected to the offer

$74 million
Net income loss Barnes & Noble reported for fiscal year 2011

$858.1 million
E-commerce sales, including for Nook e-readers, reported by Barnes & Noble for 2011, a 49.8 percent increase over 2010

Number of years, from 2001 to 2008, that Borders partnered with Amazon for online sales, rather than developing its fledgling online bookstore. The Amazon partnership "was viewed by many industry observers as costly to Borders' future," says the International Business Times. Borders also failed to bring its own e-reader to the market to compete with Amazon, as Barnes & Noble did with the Nook.

Approximate number of Borders employees who stand to lose their jobs if the remaining stores close

Sources: Huffington Post, International Business TimesInternet RetailerNews Tribune, NPR, Portfolio, Wall St. Journal