Basic earnings per share and diluted earnings per share have been calculated for the years ended December 31, 2016, 2017 and 2018 as follows:


	Year ended December 31,
	2016	2017	2018
	Class A and Class B	Class A and Class B	Class A and Class B
	RMB	RMB	RMB
Basic earnings per share attributable to Vipshop Holdings Limited’s ordinary shareholders:
Numerator:
Earnings attributable to Class A and Class B ordinary shareholders for computing basic earnings per Class A and Class B ordinary share	2,036,817	1,949,655	2,128,787
Denominator:
Weighted average number of Class A and Class B ordinary shares outstanding for computing basic earnings per Class A and Class B ordinary share	115,958,088	117,554,229	132,266,157
Basic earnings per Class A and Class B ordinary shares	17.57	16.59	16.09

Diluted earnings per share for the years ended December 31, 2016, 2017 and 2018 are calculated as follows:


	Year ended December 31,
	2016	2017	2018
	Class A and Class B	Class A and Class B	Class A and Class B
	RMB	RMB	RMB
Diluted earnings per share:
Numerator:
Earnings attributable to Class A and Class B ordinary shareholders for computing basic earnings per Class A and Class B ordinary share	2,036,817	1,949,655	2,128,787
Interest expenses from convertible senior notes	84,147	54,673	57,293
Net earnings attributable to Class A and Class B ordinary shareholders for computing diluted earnings per Class A and Class B ordinary share	2,120,964	2,004,328	2,186,080
Denominator:
Weighted average number of Class A and Class B ordinary shares outstanding for computing basic earnings per Class A and Class B ordinary share	115,958,088	117,554,229	132,266,157
Dilutive employee share options and non-vested ordinary shares	3,572,930	1,900,201	1,562,347
Dilutive convertible senior notes	6,286,165	6,261,403	6,255,106
Weighted average number of Class A and Class B ordinary shares outstanding for computing diluted earnings per Class A and Class B ordinary share	125,817,183	125,715,833	140,083,610
Diluted earnings per Class A and Class B ordinary shares	16.86	15.94	15.61