$USUAL "Circulating Supply" means "Circulating Supply", right? It means that as of December 18, 12.37% or 494.6M has been fully returned, including the reward tokens for the Airdrop. However, this amount has not been completely "claimed" yet, meaning there are still some people who have not received rewards from the Airdrop. Therefore:
1/ Currently, the total circulating supply has not yet reached 494.6M and has not exceeded this amount, contrary to some recent information that has caused confusion.
2/ The number of users receiving Airdrop rewards and selling them for profit is relatively large, so it is not surprising to see a sell-off and a decrease in price.