Table:
0
A
B
C
D
1
Year ended December 31,
2
2018
2019
Change
3
Amounts are in thousands of U.S. Dollars
4
Revenues
$618,344
$668,637
$50,293
5
Net pool allocation
17,818
(4,264)
(22,082)
6
Voyage expenses and commissions
(20,374)
(23,772)
(3,398)
7
Vessel operating and supervision costs
(128,084)
(139,662)
(11,578)
8
Depreciation
(153,193)
(168,041)
(14,848)
9
General and administrative expenses
(41,993)
(47,385)
(5,392)
10
Impairment loss on vessels
—
(162,149)
(162,149)
11
Profit from operations
292,518
123,364
(169,154)
12
Financial costs
(166,627)
(190,481)
(23,854)
13
Financial income
4,784
5,318
534
14
Loss on derivatives
(6,077)
(55,441)
(49,364)
15
Share of profit of associates
1,800
1,627
(173)
16
Total other expenses, net
(166,120)
(238,977)
(72,857)
17
Profit/(loss) for the year
126,398
(115,613)
(242,011)
18
Non-controlling interests
78,715
(14,952)
(93,667)
19
Profit/(loss) attributable to owners of the Group
$47,683
$(100,661)
$(148,344)

Questions and formulas:
Question: What was the percentage change in profit from operations from 2018 to 2019?
Formula: (C11 - B11)/B11 
Formula2: (C11 - B11)/B11 
Level: Calculation