I stake POS in MEW, but suddenly my balance dropped from 157 to 145 POS.
Why is that and how it is possible?
Good question. To the above poster who complained that we are talking about staking too much. If you read the posts, they weren't about how to stake, they were about staking rewards after first staking rewards were earned. There is "difficulty" type problems in staking.....if someone buys a ton of coins, they are going to outweigh you and reduce your staking rewards. It's similar to a lot of hash coming into a pool and you not increasing your hash power.
What I'm thinking is that we won't get any more staking rewards at the airdrop level of 70 coins. If we want to keep getting rewards, we will have to add to our pile. I am OK with that but I would like to know how much more I will have to buy. I've seen many staking coins go down to 1 Sat and below that had tons of support and people talking about how great they were.
If I have to buy .01 BTC worth of POSTokens and still not getting any staking rewards from it, that's a different story. Usually in staking threads people discuss this kind of thing. It seems people here don't understand the question or are avoiding giving any answers.
All I am asking is what balance of POSToken do you need to stake these days?
Lolz bro ..there is nothing like difficulty weight in postoken staking. You need to understand well how POS staking works. It's not like conventional coin staking. A standard code has already been written on smart contract that gives a fixed return of percentage stake irrespective of the amount of coins you have in your wallet. Though even with this standard, the more tokens you have, the more staking rewards you have. It's like a mathematical formular of a certain fixed percentage of a principal to get interest. The higher the principal, the higher the interest. This has nothing to do with network difficulty or weight as it is in conventional coin staking in qt wallets.
LOL why nobody warn people about it?
This should be announced for everybody to know and on all POS sites.
It is complete misguiding as POS calculator on main site shows positive income in my case?!
https://prnt.sc/hs9p35What a mess.
I can tell you that this issue has already been discussed 1001 times in this thread. The ish is that people are lazy to read past messages. Intact reading the OP alone answers your query.
thank you for you explanation. So the only advantage of staking every 3 days is the compounded interest we will get compare to waiting for the ripe time. 
