{"pre_text": ["n o t e s t o c o n s o l i d a t e d f i n a n c i a l s t a t e m e n t s ( continued ) ace limited and subsidiaries the following table shows changes in the company 2019s restricted stock for the years ended december 31 , 2008 , 2007 , and 2006 : number of restricted stock weighted average grant- date fair value ."], "post_text": ["under the provisions of fas 123r , the recognition of deferred compensation , a contra-equity account representing the amount of unrecognized restricted stock expense that is reduced as expense is recognized , at the date restricted stock is granted is no longer permitted .", "therefore , upon adoption of fas 123r , the amount of deferred compensation that had been reflected in unearned stock grant compensation was reclassified to additional paid-in capital in the company 2019s consolidated balance sheet .", "restricted stock units the company 2019s 2004 ltip also provides for grants of other awards , including restricted stock units .", "the company generally grants restricted stock units with a 4-year vesting period , based on a graded vesting schedule .", "each restricted stock unit repre- sents the company 2019s obligation to deliver to the holder one share of common shares upon vesting .", "during 2008 , the company awarded 223588 restricted stock units to officers of the company and its subsidiaries with a weighted-average grant date fair value of $ 59.93 .", "during 2007 , 108870 restricted stock units , with a weighted-average grant date fair value of $ 56.29 were awarded to officers of the company and its subsidiaries .", "during 2006 , 83370 restricted stock units , with a weighted-average grant date fair value of $ 56.36 were awarded to officers of the company and its subsidiaries .", "the company also grants restricted stock units with a 1-year vesting period to non-management directors .", "delivery of common shares on account of these restricted stock units to non-management directors is deferred until six months after the date of the non-management directors 2019 termination from the board .", "during 2008 , 2007 , and 2006 , 40362 restricted stock units , 29676 restricted stock units , and 23092 restricted stock units , respectively , were awarded to non-management direc- the espp gives participating employees the right to purchase common shares through payroll deductions during consecutive 201csubscription periods . 201d annual purchases by participants are limited to the number of whole shares that can be purchased by an amount equal to ten percent of the participant 2019s compensation or $ 25000 , whichever is less .", "the espp has two six-month subscription periods , the first of which runs between january 1 and june 30 and the second of which runs between july 1 and december 31 of each year .", "the amounts that have been collected from participants during a subscription period are used on the 201cexercise date 201d to purchase full shares of common shares .", "an exercise date is generally the last trading day of a sub- scription period .", "the number of shares purchased is equal to the total amount , as of the exercise date , that has been collected from the participants through payroll deductions for that subscription period , divided by the 201cpurchase price 201d , rounded down to the next full share .", "effective for and from the second subscription period of 2007 , the purchase price is 85 percent of the fair value of a common share on the exercise date .", "prior to the second subscription period of 2007 , the purchase price was calculated as the lower of ( i ) 85 percent of the fair value of a common share on the first day of the subscription period , or ."], "table": [["", "number of restricted stock", "weighted average grant- date fair value"], ["unvested restricted stock december 31 2005", "3488668", "$ 41.26"], ["granted", "1632504", "$ 56.05"], ["vested and issued", "-1181249 ( 1181249 )", "$ 40.20"], ["forfeited", "-360734 ( 360734 )", "$ 44.04"], ["unvested restricted stock december 31 2006", "3579189", "$ 48.07"], ["granted", "1818716", "$ 56.45"], ["vested and issued", "-1345412 ( 1345412 )", "$ 44.48"], ["forfeited", "-230786 ( 230786 )", "$ 51.57"], ["unvested restricted stock december 31 2007", "3821707", "$ 53.12"], ["granted", "1836532", "$ 59.84"], ["vested and issued", "-1403826 ( 1403826 )", "$ 50.96"], ["forfeited", "-371183 ( 371183 )", "$ 53.75"], ["unvested restricted stock december 31 2008", "3883230", "$ 57.01"]], "table_ori": [["", "Number of Restricted Stock", "Weighted Average Grant- Date Fair Value"], ["Unvested restricted stock, December 31, 2005", "3,488,668", "$41.26"], ["Granted", "1,632,504", "$56.05"], ["Vested and issued", "(1,181,249)", "$40.20"], ["Forfeited", "(360,734)", "$44.04"], ["Unvested restricted stock, December 31, 2006", "3,579,189", "$48.07"], ["Granted", "1,818,716", "$56.45"], ["Vested and issued", "(1,345,412)", "$44.48"], ["Forfeited", "(230,786)", "$51.57"], ["Unvested restricted stock, December 31, 2007", "3,821,707", "$53.12"], ["Granted", "1,836,532", "$59.84"], ["Vested and issued", "(1,403,826)", "$50.96"], ["Forfeited", "(371,183)", "$53.75"], ["Unvested restricted stock, December 31, 2008", "3,883,230", "$57.01"]]}

Question: what is the net change in the number of unvested restricted stocks in 2007?
Evidence:
table_5: the unvested restricted stock december 31 2006 of number of restricted stock is 3579189 ; the unvested restricted stock december 31 2006 of weighted average grant- date fair value is $ 48.07 ;
table_6: the granted of number of restricted stock is 1818716 ; the granted of weighted average grant- date fair value is $ 56.45 ;
table_7: the vested and issued of number of restricted stock is -1345412 ( 1345412 ) ; the vested and issued of weighted average grant- date fair value is $ 44.48 ;
table_8: the forfeited of number of restricted stock is -230786 ( 230786 ) ; the forfeited of weighted average grant- date fair value is $ 51.57 ;
table_9: the unvested restricted stock december 31 2007 of number of restricted stock is 3821707 ; the unvested restricted stock december 31 2007 of weighted average grant- date fair value is $ 53.12 ;
Program: add(1818716, -1345412), add(#0, -230786)
Answer:
str_answer: 242518
exe_answer: 242518