Currently he is sitting on 49.9% as of today in diamond+ and 46.8% in bronze+ (Just before 7.1 it was 50.8% diamond+ and 48.9% bronze+)
Stacked with the initial change which made ad shaco near useless, then the hard nerf after that mid 6.24 which made ad even more useless and it lowered ap build with the qe combo to have a smaller ap scaling ratio than his old e alone had.
Old shaco had much higher bases, much higher ap scaling and much higher ad scaling than the current shaco. On top of that gutting of his damage completely they lowered jg xp rewards on every single camp that shaco can clear and moved it to raptors, which is infamous to shaco players as they can't clear it without being forced to back and burning smite due to the large amount of them, their high damage and their tanky nature.
Shaco did go from being king damage and winrate wise, to dropping down really low in the jg with only a hotfix and an xp modification.
I do think he was a bit too strong from before the hotfix, but the hotfix gutted his damage a bit too much and atm he doesn't do that much damage, he is literally only good for cleaning up atm. Most of his damage came from the gunblade, luden, lichbane itemisation he was building, the high scalings only helped him reach that stage, but because they were nerfed so much he can't get to that stage due to his immense lack of damage and how far he falls behind from the mass denial of xp he gets in jg, and if he tries to reclaim come with tax people are toxic towards him if he doesn't people are toxic for him being so far behind, he isn't too healthy atm, his e scale at least should be bumped to 80% to give him a little bit of a fighting chance in a world gone mad.