Network Hash rate is increasing like crazy lately, my Luck has doubled within the last week, soon it won't be as profitable to mine as Nicehash/MPH
I really like mining it because lolminer is very power efficient and my GPU temps remain cool. I don't feel like I am abusing my cards, like I would be if I was mining ethereum or something.
Also monthly parking is the best rate atm. Compounding is very simple. Add 1 to the rate, then raise it to the n'th power (n = compounds/year)
Daily: 1.0024 ** 365 = 2.39875650196, profit = 139.88%
Weekly: 1.0189 ** 52 = 2.6475321128, profit = 164.75%
Monthly: 1.114 ** 12 = 3.65276968652. profit = 265.28%
Yearly: 1.702, profit = 70.2%
Monthly is the best return right NOW, but keep in mind if rates plummet, it might make locking in a longer term more profitable. So while 70.2% may seem like the worst, it can turn out to be the best if all the rates drop to 20% of their current value within 3 months.