I remember the last day of Bounty Hunter S1 2021, the lowest APR% it reached before it ends was 250% !!
But in the start of S2 2022, it was dropped to 179.52% one day after it started (recorded every 6 pm +8 UTC) and the lowest APR dropped was 153.39%
Now as of writing this, current APR of newest BH S3 2022 is 161.77% (not even 24hrs after it started)
I can imagine how further it will drop because of exploitation