what portion of the total minimum payments required for lease commitments is due in the upcoming year?
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 .

rent_due_2008 = 317
rent_due_total = 1830
percent_due = rent_due_2008 / rent_due_total
answer = percent_due * 100