help extracting comma separated data

Hi all,
Please help! I'm trying to extract the return % after the last comma (some has 2 commas). Been trying for a while without much luck.

For example:
A1
Company, Inc., 11.12% --> want 11.12%
Company, 11.12% --> want 11.12%
Altria Group, Inc., 6.71% --> want 6.71%
Washington Mutual, Inc., 3.13% --> want 3.13%
Chevron Corporation, Inc., 2.8% ---> want 2.8%
Devon Energy Corporation, 2.5% ---> want 2.5%

I've tried with this formula
=IF(LEN(A1)-SEARCH(", ",A1)-1=4,TEXT(RIGHT(A1,4),"0.00%"),
IF(LEN(A1)-SEARCH(", ",A1)-1=5,TEXT(RIGHT(A1,5),"0.00%"),
IF(LEN(A1)-SEARCH(", ",A1)-1>=6,TEXT(RIGHT(A1,6),"0.00%"),)))

and this:
=IF(OR((LEN(A1)-SEARCH(", ",A1)-1>=6),(LEN(A1)-SEARCH(", ",A1)-1=4)),TEXT(RIGHT(A1,6),"0.00%"),TEXT(RIGHT(A1,5),"0.00%"))

Both don't quite work!

Any help would be greatly appreciated!

Thanks in advance.

After digging around the forum, I found the solution to this problem by user

sweep
http://www.excelforum.com/showthread...=extract+comma