Money Generated on Post

My first Steemit post generated $0.01 but now it shows as $0.00. I can see there is Steem Dollars, Power, Savings, and Estimated Account Value. There's also four different Permissions: Posting, Active, Owner, and Memo. Can someone explain the differences for me or more preferably provide a link that describes all this?

Why have I lost the $0.01?

Thank you!