You need to multiply by 100 to get percentage numbers. 1% of 2450 is 24.5, so the ~6 per day you're seeing is about a quarter of that, or about 0.25%.

Edit: I would encourage you try keep solo-staking for another month, and post your stats at the end of each week. I would be interested to see how much variance you experience, and whether you continue to outperform JD on average. I think it would be a close call, but from the analysis I've done I would expect the ~14% orphan rate you get solo staking to overwhelm the 10% commission that JD charges. It's possible that my calculation of the orphan rate is wrong. Are you saying you only saw 2 orphans in 43 staked blocks, one of which you attribute to your own activity? If so, that's much lower than I would expect.