^^Kindof an ambiguous statement.
The difference is actually 9.864%. so at 6000rpm the difference is 600ish rpm. Some of the Mopar smaller gears are around 10%.After 3.55 it tightens up to around 5%.
Here is a breakdown;
2.45 to 2.76 =12.65%
2.76 to 2.94 =6.5%
2.94 to 3.23 =9.86%
3.23 to 3.55 =9.9%
3.55 to 3.73 =5.1%
3.73 to 3.91 =4.8%
3.91 to 4.11 =5.1%
4.11 to 4.30 =4.6%
4.30 to 4.56 =6.0%