what is the performance shares granted as a percent of the total number of granted shares in 2010?
the company granted 1020 performance shares . the vesting of these shares is contingent on meeting stated goals over a performance period . beginning with restricted stock grants in september 2010 , dividends are accrued on restricted class a common stock and restricted stock units and are paid once the restricted stock vests . the following table summarizes restricted stock and performance shares activity for 2010 : number of shares weighted average grant date fair value .

|  | Number of Shares | Weighted Average Grant Date Fair Value |
| :--- | :--- | :--- |
| Outstanding at December 31, 2009 | 116,677 | $280 |
| Granted | 134,245 | 275 |
| Vested | (34,630) | 257 |
| Cancelled | (19,830) | 260 |
| Outstanding at December 31, 2010 | 196,462 | 283 |

the total fair value of restricted stock that vested during the years ended december 31 , 2010 , 2009 and 2008 , was $ 10.3 million , $ 6.2 million and $ 2.5 million , respectively . eligible employees may acquire shares of cme group 2019s class a common stock using after-tax payroll deductions made during consecutive offering periods of approximately six months in duration . shares are purchased at the end of each offering period at a price of 90% ( 90 % ) of the closing price of the class a common stock as reported on the nasdaq . compensation expense is recognized on the dates of purchase for the discount from the closing price . in 2010 , 2009 and 2008 , a total of 4371 , 4402 and 5600 shares , respectively , of class a common stock were issued to participating employees . these shares are subject to a six-month holding period . annual expense of $ 0.1 million for the purchase discount was recognized in 2010 , 2009 and 2008 , respectively . non-executive directors receive an annual award of class a common stock with a value equal to $ 75000 . non-executive directors may also elect to receive some or all of the cash portion of their annual stipend , up to $ 25000 , in shares of stock based on the closing price at the date of distribution . as a result , 7470 , 11674 and 5509 shares of class a common stock were issued to non-executive directors during 2010 , 2009 and 2008 , respectively . these shares are not subject to any vesting restrictions . expense of $ 2.4 million , $ 2.5 million and $ 2.4 million related to these stock-based payments was recognized for the years ended december 31 , 2010 , 2009 and 2008 , respectively. .

shares_granted = 1020
shares_total = 134245
percent_performance = shares_granted / shares_total
answer = percent_performance * 100