Please answer the given financial question based on the context.
Context: 14 . stock compensation plans the following table summarizes stock-based compensation expense recognized in continuing operations in the consolidated statements of income in compensation and benefits ( in millions ) : .
|years ended december 31|2009|2008|2007|
|rsus|$ 124|$ 132|$ 109|
|performance plans|60|67|54|
|stock options|21|24|22|
|employee stock purchase plans|4|3|3|
|total stock-based compensation expense|209|226|188|
|tax benefit|68|82|64|
|stock-based compensation expense net of tax|$ 141|$ 144|$ 124|
during 2009 , the company converted its stock administration system to a new service provider . in connection with this conversion , a reconciliation of the methodologies and estimates utilized was performed , which resulted in a $ 12 million reduction of expense for the year ended december 31 , 2009 . stock awards stock awards , in the form of rsus , are granted to certain employees and consist of both performance-based and service-based rsus . service-based awards generally vest between three and ten years from the date of grant . the fair value of service-based awards is based upon the market price of the underlying common stock at the date of grant . with certain limited exceptions , any break in continuous employment will cause the forfeiture of all unvested awards . compensation expense associated with stock awards is recognized over the service period using the straight-line method . dividend equivalents are paid on certain service-based rsus , based on the initial grant amount . at december 31 , 2009 , 2008 and 2007 , the number of shares available for stock awards is included with options available for grant . performance-based rsus have been granted to certain employees . vesting of these awards is contingent upon meeting various individual , divisional or company-wide performance conditions , including revenue generation or growth in revenue , pretax income or earnings per share over a one- to five-year period . the performance conditions are not considered in the determination of the grant date fair value for these awards . the fair value of performance-based awards is based upon the market price of the underlying common stock at the date of grant . compensation expense is recognized over the performance period , and in certain cases an additional vesting period , based on management 2019s estimate of the number of units expected to vest . compensation expense is adjusted to reflect the actual number of shares paid out at the end of the programs . the payout of shares under these performance-based plans may range from 0-200% ( 0-200 % ) of the number of units granted , based on the plan . dividend equivalents are generally not paid on the performance-based rsus . during 2009 , the company granted approximately 2 million shares in connection with the completion of the 2006 leadership performance plan ( 2018 2018lpp 2019 2019 ) cycle . during 2009 , 2008 and 2007 , the company granted approximately 3.7 million , 4.2 million and 4.3 million restricted shares , respectively , in connection with the company 2019s incentive compensation plans. .
Question: what was the change in the stock compensation plans rsu in millions from 2007 to 2008


Answer: The answer is:23.0