Table:
0
A
B
C
D
E
1
Three months ended
2
March 31, 2018
June 30, 2018
September 30, 2018
December 31, 2018
3
(in thousands, except share and per share amounts)
4
Service revenue
$128,706
$129,296
$130,139
$132,049
5
Network operations, including equity-based compensation expense
54,875
54,379
54,615
55,660
6
Gains on equipment transactions
117
357
416
92
7
Operating income
20,637
21,354
22,255
22,311
8
Net income
6,784
6,552
8,231
7,100
9
Net income per common share—basic and diluted
0.15
0.15
0.18
0.16
10
Weighted-average number of common shares—basic
44,923,973
45,016,767
45,105,830
45,284,481
11
Weighted-average number of common shares—diluted
45,294,697
45,536,473
45,699,635
45,803,418

Questions and formulas:
Question: What is the total service revenue at March 31 and June 30, 2018?
Formula: (B4 + C4) 
Formula2: (B4 + C4) 
Level: Calculation
Question: What is the average service revenue at June 30 and September 30, 2018?
Formula: (C4 + D4)/2 
Formula2: (C4 + D4)/2 
Level: Calculation
Question: What is the percentage change in the service revenue between September 30 and December 31, 2018?
Formula: (E4 - D4)/D4 
Formula2: (E4 - D4)/D4 
Level: Calculation