devon energy corporation and subsidiaries notes to consolidated financial statements 2013 ( continued ) proved undeveloped reserves the following table presents the changes in devon 2019s total proved undeveloped reserves during 2013 ( in mmboe ) . .

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• , u.s ., canada, total
• proved undeveloped reserves as of december 31 2012, 407, 433, 840
• extensions and discoveries, 57, 38, 95
• revisions due to prices, 1, -10 ( 10 ), -9 ( 9 )
• revisions other than price, -91 ( 91 ), 13, -78 ( 78 )
• conversion to proved developed reserves, -116 ( 116 ), -31 ( 31 ), -147 ( 147 )
• proved undeveloped reserves as of december 31 2013, 258, 443, 701
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at december 31 , 2013 , devon had 701 mmboe of proved undeveloped reserves . this represents a 17 percent decrease as compared to 2012 and represents 24 percent of total proved reserves . drilling and development activities increased devon 2019s proved undeveloped reserves 95 mmboe and resulted in the conversion of 147 mmboe , or 18 percent , of the 2012 proved undeveloped reserves to proved developed reserves . costs incurred related to the development and conversion of devon 2019s proved undeveloped reserves were $ 1.9 billion for 2013 . additionally , revisions other than price decreased devon 2019s proved undeveloped reserves 78 mmboe primarily due to evaluations of certain u.s . onshore dry-gas areas , which devon does not expect to develop in the next five years . the largest revisions relate to the dry-gas areas in the cana-woodford shale in western oklahoma , carthage in east texas and the barnett shale in north texas . a significant amount of devon 2019s proved undeveloped reserves at the end of 2013 related to its jackfish operations . at december 31 , 2013 and 2012 , devon 2019s jackfish proved undeveloped reserves were 441 mmboe and 429 mmboe , respectively . development schedules for the jackfish reserves are primarily controlled by the need to keep the processing plants at their 35000 barrel daily facility capacity . processing plant capacity is controlled by factors such as total steam processing capacity , steam-oil ratios and air quality discharge permits . as a result , these reserves are classified as proved undeveloped for more than five years . currently , the development schedule for these reserves extends though the year 2031 . price revisions 2013 2013 reserves increased 94 mmboe primarily due to higher gas prices . of this increase , 43 mmboe related to the barnett shale and 19 mmboe related to the rocky mountain area . 2012 2013 reserves decreased 171 mmboe primarily due to lower gas prices . of this decrease , 100 mmboe related to the barnett shale and 25 mmboe related to the rocky mountain area . 2011 2013 reserves decreased 21 mmboe due to lower gas prices and higher oil prices . the higher oil prices increased devon 2019s canadian royalty burden , which reduced devon 2019s oil reserves . revisions other than price total revisions other than price for 2013 , 2012 and 2011 primarily related to devon 2019s evaluation of certain dry gas regions , with the largest revisions being made in the cana-woodford shale , barnett shale and carthage .

Question: as of december 31 2013 what was the percent of the proved undeveloped reserves in canada
Program: divide(443, 701)
Answer: 0.63195