Answer based on context:

The Green Bay Packers hung on to beat the Carolina Panthers, 30-23, in front of 73,167 at Bank of America Stadium in Charlotte, NC. QB Aaron Rodgers completed 19 of 30 passes for 308 yards and 2 touchdowns, FB John Kuhn rushed for another, and K Mason Crosby converted 3 of 3 field goals (37, 19, 34) in the win for the Packers. The Packers improved to 2-0 on the season in their quest to repeat as Super Bowl Champions. During the win three-time Pro Bowl FS Nick Collins was lost for the season with a neck injury. Panthers QB Cam Newton threw for 432 yards and a touchdown, and rushed for a score in his second career NFL start. Newton was also intercepted 3 times on the day, 2 times by Packers CB Charles Woodson (who also recovered a fumble for Green Bay defensively). Carolina fell to 0-2 on the season.

By how many points did the Packers win the game?
7