The following table presents certain unaudited quarterly financial data for the years ended December 31, 2014 and 2013. This information has been prepared on the same basis as the accompanying Consolidated Financial Statements and all necessary adjustments have been included in the amounts below to state fairly the selected quarterly information when read in conjunction with the accompanying Consolidated Financial Statements and Notes thereto.



	Quarter Ended
	December 31, 2014			September 30, 2014			June 30, 2014			March 31, 2014
Total revenue	$	53,829		$	46,719		$	44,368		$	40,913
Gross profit	$	39,319		$	32,442		$	29,615		$	26,367
Loss from operations	$	(2,316	)	$	(3,720	)	$	(7,871	)	$	(8,500	)
Net loss attributable to PROS Holdings, Inc.	$	(17,459	)	$	(3,734	)	$	(6,996	)	$	(8,455	)
Net loss attributable to common stockholders per share:
Basic	$	(0.60	)	$	(0.13	)	$	(0.24	)	$	(0.29	)
Diluted	$	(0.60	)	$	(0.13	)	$	(0.24	)	$	(0.29	)



	Quarter Ended
	December 31, 2013		September 30, 2013		June 30, 2013		March 31, 2013
Total revenue	$	38,871	$	36,813	$	35,527	$	33,626
Gross profit	$	28,101	$	25,787	$	24,741	$	23,073
Income from operations	$	409	$	1,395	$	780	$	689
Net income attributable to PROS Holdings, Inc.	$	139	$	993	$	580	$	1,734
Net earnings attributable to common stockholders per share:
Basic	$	—	$	0.04	$	0.02	$	0.06
Diluted	$	—	$	0.03	$	0.02	$	0.06

In connection with the preparation of the Company’s financial statements for the year ended December 31, 2014, the Company revised the classification of the amortization expense of developed technology arising from the acquisitions of Cameleon and Signal Demand. The amortization expense was previously recorded within research and development expenses as a component of operating expenses and was reclassified as a component of cost of revenue. Accordingly, the Consolidated Statements of Comprehensive Income were adjusted for the periods ended March 31, 2014, June 30, 2014, and September 30, 2014 to increase cost of revenue and reduce gross profit by $0.5 million, $0.6 million and $0.6 million, respectively. Research and development expenses were reduced by the same adjustments resulting in no change to reported net income attributable to PROS Holdings, Inc. or basic or diluted net earnings attributable to common stockholders per share.

These revisions were not deemed material, individually or in aggregate, to the Consolidated Statements of Comprehensive Income for the corresponding prior periods. These revisions do not impact the Company’s previously reported Consolidated Balance Sheets or Statements of Cash Flows.