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Re:Square files for IPO by abalone on Thursday October 15, 2015 @08:57AM (#10392829)
A lot. In the U.S. debit is over 40% of transactions and growing.

http://www.nilsonreport.com/upload/Nilson_Purch_Vol_2013.May...

Re:Square files for IPO by untog on Thursday October 15, 2015 @05:03PM (#10395978)
Those aren't Square specific numbers, though.