Question: How much did "Glad You Came" sell in its first week?
About the article "Glad You Came", section "Chart performance".

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"All Time Low" was released as the EP's lead single on 1 July 2011.
The single was available in three formats - a standard download, a nine-track remix EP and as part of a five-track live performance EP recorded at the iTunes festival, London, in March 2011.
Aside from charting at number 19 on the Billboard Hot Dance Club Songs chart, the single failed to achieve any sort of commercial success, as its release did not receive any promotion.
"Glad You Came" was released as the EP's second single on 18 October 2011.
This time, a much heavier promotional schedule was given to the single, and as such, following heavy radio play and television coverage, the single entered the "Billboard" Hot 100 at number 64.
The success of the single soon skyrocketed in January 2012 after the band gave a live performance of the song on The Ellen DeGeneres Show, which became their first ever TV performance in the United States.
The band went on tour throughout America in January 2012 to promote the single, and a number of shows became sell-outs.
The band soon began to receive nationwide acclaim, and in February 2012, the single's success continued to grow after the song was covered in an episode of the American television drama series "Glee".
The song began to climb up the Billboard Hot 100, and at the end of February, it peaked at #3, breaking an all time record, becoming the highest chart position for a British boyband ever on the chart, beating the existing record of #7 set by Take That's "Back for Good".
The band reportedly sold over 180,000 copies of the single over the course of a week.
"Chasing the Sun" was released as the third and final single on 17 April 2012.
It was sent to US mainstream radio on 15 May 2012. 
During the lockout of the 2011 offseason, Will gained 19 pounds and reported to camp at 319 pounds.
Upon arriving to camp, Will was immediately named the starting Left Tackle with the subsequent releasing of veteran offensive linemen Shaun O'Hara and Rich Seubert.
In the first preseason game against rookie Cam Newton and the Carolina Panthers, Will did not give up any sacks.
Will gained national media attention in the week following the game for his tough practicing against Jason Pierre-Paul, who had 2 sacks in the Carolina Preseason game and veteran Osi Umenyiora.
Will wrote on his Twitter page, "Today I showed a vet, Osi Umenyiora #NYG how much I have grown and prepared this off season.
I'm glad to have the opportunity to practice my skill on a great pass rusher in the NFL."
The following day he added, "We had open practice today and all I can say is, if you missed practice you missed a good show."
This smack-talking was well received by Giants fans who originally thought that Beatty was too soft and mild-mannered to play in the NFL.
Will started the first 10 games at Left Tackle for the Giants in 2011. 
McCracken continued to think about how to measure performance in a variety of organized sports, such as international football (American soccer).
In 2007 he began a blog, vorosmccracken.com, with the subtitle “triumphant return of The Knack of the baseball world."
The blog focused much of its attention on international soccer, including ratings of the national teams and forecasts of team performance in the World Cup 2010 and other tournaments.
But he has little involvement in baseball analysis.
Jeff Passan has written, Of course, one great idea guarantees nothing.
Not prominence.
McCracken spends his days and nights analyzing European soccer.
He won't say for what or whom or where.
The client appreciates anonymity.
Wealth is absent, too.
McCracken lives paycheck to paycheck.
He couldn't make rent on his apartment last year.
"If I give DIPS away for free once, that's fine," he says.
"I came up with an idea that was monetized to the hundreds of millions of dollars, and I'm broke.
I'm glad I did it.
Can't do it anymore.
I've done enough to prove I can at least do something.
Boy, that's a revolutionary idea that changed baseball.
Can you do it again?
No.
I can't do it again unless you pay me”. 
The Wanted's "Glad You Came" debuted at number one in the UK singles chart.
New entries included: David Guetta & Taio Cruz's "Little Bad Girl", Scouting for Girls' "Love How It Hurts", and LMFAO's "Champagne Showers" at numbers 16, 17 and 37.
Significant risers included: Adele's "Set Fire to the Rain" climbing a place to number 11, Chris Brown's "Next 2 You" climbing 4 places to number 20, and Foster the People's "Pumped Up Kicks" climbing 4 places to number 27.
In the albums, Adele's "21" climbed a place to number one.
New entries included: The Horrors' "Skying", Big Time Rush's "B.T.R.
", David Guetta's "One Love" (re-entry), Ricky Martin's "Greatest Hits", and The Script's "Science & Faith" (re-entry) at numbers 5, 14, 17, 24, and 32.
Significant risers included: Caro Emerald's "Deleted Scenes from the Cutting Room Floor" climbing a place to number 6, Foo Fighters' "Wasting Light" climbin 4 places to number 8, The Vaccines' "What Did You Expect from the Vaccines?"
climbing 15 places to 21, Katy Perry's "Teenage Dream" climbing 11 places to number 22, and Katy B's "On a Mission" climbing 5 places to number 26.
The biggest faller this week came from Beverley Knight's "Soul UK" falling 27 places to number 40.