assuming that actual net rent expense will be the same as presented in the table , what would be the growth rate in the net rent expense from 2008 to 2009?
notes to consolidated financial statements at december 31 , 2007 , future minimum rental payments required under operating leases for continuing operations that have initial or remaining noncancelable lease terms in excess of one year , net of sublease rental income , most of which pertain to real estate leases , are as follows : ( millions ) .

| 2008 | $317 |
| :--- | :--- |
| 2009 | 275 |
| 2010 | 236 |
| 2011 | 214 |
| 2012 | 191 |
| Later years | 597 |
| Total minimum payments required | $1,830 |

aon corporation .

net_rent_expense_2009 = 275
net_rent_expense_2008 = 317
change = net_rent_expense_2009 - net_rent_expense_2008
percent_change = change / net_rent_expense_2008
answer = percent_change * 100