Table:
0
A
B
C
1
Pro Forma
2
Year Ended December 31,
3
2019
2018
4
Revenue
$527,550
$451,013
5
Net income attributable to common stockholders
51,075
13,264
6
Net income attributable to common stockholders per share - basic
$1.05
$0.27
7
Net income attributable to common stockholders per share - diluted
$1.02
$0.26

Questions and formulas:
Question: What was the change in the Net income attributable to common stockholders per share - diluted between 2018 and 2019?
Formula: B7-C7
Formula2: B7-C7
Level: Calculation
Question: What was the percentage change in the revenue between 2018 and 2019?
Formula: (B4-C4)/C4
Formula2: (B4-C4)/C4
Level: Calculation