There are a couple of reasons behind this one that a major portion of investers decided to cash out at the highest level so they could buy a high volume of bitcoins with steem as the prices recover, I saw an article recently that mentioned that about $13 billion were withdrawn in a week which led to crypto market crash, the reason why prices are hiking again is because of the recent ransomware attack again so the prices will recover plus a lot of newcomers are there in the cryptocurrency industry now, I am a newcomer as well so you can expect the prices to recover after we invest in the market. This is one of the blogs that I have written recently about the crash and the article that I mentioned a link to it is given in it.
As to why your voting value might have fallen can be related to your voting value, I was also concerned about it last week so I did my research and wrote a guide on it for reference.
Hope this helps.
https://steemit.com/steemit/@rkaz/what-your-upvote-is-worth-on-steemit-in-laymans-terms
Very interesting! Thanks.