You can calculate the profitability of various coins on various websites.
www.coinwarz.com is one of them. The link is already set so you can see the profitability of my A2, noting that these are no sure things, coin difficulty varies and sell prices vary.
You can of course mine a scrypt coin that you believe will rise in value.
multipools are an option as well. Multiply the daily BTC per MHs with 28 to get to the BTC estimate of my miner. Again this is an estimate, profitabilities cannot be predicted.
Hope this helps. More questions just ask.
EDIT: to answer you question, yes 24hr is .084 BTC, but you will receive an extra 2hr bonus for that. (which will make .0775 BTC for 24 hr)