during 2009 , the company extended the contractual life of 4 million fully vested share options held by 6 employees .
as a result of that modification , the company recognized additional compensation expense of $ 1 million for the year ended december 31 , 2009 .
restricted stock units ( 201crsus 201d ) performance-based rsus .
the company grants performance-based rsus to the company 2019s executive officers and certain employees once per year .
the company may also grant performance-based rsus to certain new employees or to employees who assume positions of increasing responsibility at the time those events occur .
the number of performance-based rsus that ultimately vest is dependent on one or both of the following as per the terms of the specific award agreement : the achievement of 1 ) internal profitability targets ( performance condition ) and 2 ) market performance targets measured by the comparison of the company 2019s stock performance versus a defined peer group ( market condition ) .
the performance-based rsus generally cliff-vest during the company 2019s quarter-end september 30 black-out period three years from the date of grant .
the ultimate number of shares of the company 2019s series a common stock issued will range from zero to stretch , with stretch defined individually under each award , net of personal income taxes withheld .
the market condition is factored into the estimated fair value per unit and compensation expense for each award will be based on the probability of achieving internal profitability targets , as applicable , and recognized on a straight-line basis over the term of the respective grant , less estimated forfeitures .
for performance-based rsus granted without a performance condition , compensation expense is based on the fair value per unit recognized on a straight-line basis over the term of the grant , less estimated forfeitures .
in april 2007 , the company granted performance-based rsus to certain employees that vest annually in equal tranches beginning october 1 , 2008 through october 1 , 2011 and include a market condition .
the performance- based rsus awarded include a catch-up provision that provides for an additional year of vesting of previously unvested amounts , subject to certain maximums .
compensation expense is based on the fair value per unit recognized on a straight-line basis over the term of the grant , less estimated forfeitures .
a summary of changes in performance-based rsus outstanding is as follows : number of weighted average fair value ( in thousands ) ( in $ ) .

number of units ( in thousands )
weighted average fair value ( in $ )
nonvested at december 31 2008
1188
19.65
granted
420
38.16
vested
-79 ( 79 )
21.30
forfeited
-114 ( 114 )
17.28
nonvested at december 31 2009
1415
25.24

the fair value of shares vested for performance-based rsus during the years ended december 31 , 2009 and 2008 was $ 2 million and $ 3 million , respectively .
there were no vestings that occurred during the year ended december 31 , 2007 .
fair value for the company 2019s performance-based rsus was estimated at the grant date using a monte carlo simulation approach .
monte carlo simulation was utilized to randomly generate future stock returns for the company and each company in the defined peer group for each grant based on company-specific dividend yields , volatilities and stock return correlations .
these returns were used to calculate future performance-based rsu vesting percentages and the simulated values of the vested performance-based rsus were then discounted to present value using a risk-free rate , yielding the expected value of these performance-based rsus .
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Question: what was the net change number of units in 2009 in thousands
Answer: 227