intermodal 2013 decreased volumes and fuel surcharges reduced freight revenue from intermodal shipments in 2009 versus 2008 .
volume from international traffic decreased 24% ( 24 % ) in 2009 compared to 2008 , reflecting economic conditions , continued weak imports from asia , and diversions to non-uprr served ports .
additionally , continued weakness in the domestic housing and automotive sectors translated into weak demand in large sectors of the international intermodal market , which also contributed to the volume decline .
conversely , domestic traffic increased 8% ( 8 % ) in 2009 compared to 2008 .
a new contract with hub group , inc. , which included additional shipments , was executed in the second quarter of 2009 and more than offset the impact of weak market conditions in the second half of 2009 .
price increases and fuel surcharges generated higher revenue in 2008 , partially offset by lower volume levels .
international traffic declined 11% ( 11 % ) in 2008 , reflecting continued softening of imports from china and the loss of a customer contract .
notably , the peak intermodal shipping season , which usually starts in the third quarter , was particularly weak in 2008 .
additionally , continued weakness in domestic housing and automotive sectors translated into weak demand in large sectors of the international intermodal market , which also contributed to lower volumes .
domestic traffic declined 3% ( 3 % ) in 2008 due to the loss of a customer contract and lower volumes from less-than-truckload shippers .
additionally , the flood-related embargo on traffic in the midwest during the second quarter hindered intermodal volume levels in 2008 .
mexico business 2013 each of our commodity groups include revenue from shipments to and from mexico .
revenue from mexico business decreased 26% ( 26 % ) in 2009 versus 2008 to $ 1.2 billion .
volume declined in five of our six commodity groups , down 19% ( 19 % ) in 2009 , driven by 32% ( 32 % ) and 24% ( 24 % ) reductions in industrial products and automotive shipments , respectively .
conversely , energy shipments increased 9% ( 9 % ) in 2009 versus 2008 , partially offsetting these declines .
revenue from mexico business increased 13% ( 13 % ) to $ 1.6 billion in 2008 compared to 2007 .
price improvements and fuel surcharges contributed to these increases , partially offset by a 4% ( 4 % ) decline in volume in 2008 compared to 2007 .
operating expenses millions of dollars 2009 2008 2007 % (  % ) change 2009 v 2008 % (  % ) change 2008 v 2007 .

<i>Millions of Dollars</i>
<i>2009</i>
<i>2008</i>
<i>2007</i>
<i>% Change 2009 v 2008</i>
% Change 2008 v 2007
Compensation and benefits
$4,063
$4,457
$4,526
(9)%
(2)%
Fuel
1,763
3,983
3,104
(56)
28
Purchased services and materials
1,614
1,902
1,856
(15)
2
Depreciation
1,444
1,387
1,321
4
5
Equipment and other rents
1,180
1,326
1,368
(11)
(3)
Other
687
840
733
(18)
15
Total
$10,751
$13,895
$12,908
(23)%
8%

2009 intermodal revenue international domestic .

Question: Analyse this data from a financial earnings document. what was the change in millions of compensation and benefits from 2008 to 2009?
Choices:
394
8520
4061.8
4065
-394.0
Correct choice index: 4