Can someone explain to me how do you read the blockchain.info transaction data? Ok so i've been using bitcoin for some time now, but i never figured out how to read the blockchain.info transaction data. Here's a sample of what I mean: 

http://prntscr.com/2dj7tr --- https://blockchain.info/address/1KnfCxy8XkNQu9pYpqEU1fxAELqRsYDbZK

Here are a few questions that i have:


Are those bitcoin wallet addresses on the left and right column?
What is the top address representing that starts with a 7 and every other address starts with a 1? Whats the difference?
Can someone explain exactly whats going on here? I see 5 addresses that are pointing to the many other addresses on the right column. 
On the bottom it seems like it's a total of $1453, but if you add up all those addresses it clearly doesn't equal that.
Bitcoin addresses on the left are valid addresses from wallet, someone has private key for them. Bitcoin addresses on the right can be any addresses, even addresses, that nobody has private keys for them (so bitcoins on them are unspendable).
This is transaction id.
Bitcoin transaction can have many addresses on the left and on the right. Bitcoins are moved from left addresses to right.
You opened a page with specific address. $1453 means, that this address received $1453 with this transcation. If you open a page with this transaction directrly https://blockchain.info/tx/7dd8efe094e11c890eea7dc65e9bc7fb44903ed3e9b856e854d7d31e247ea1f2 you can see total sum. If you sum up left part and substract sum of right part, you can calculate fee.