Solution is maybe to create another three columns: Exchange rate LTC, LTC/Day, and Days to create 1 LTC. Also current Revenue/day need to be changed to BTC/Day if you like this idea. So if no BTC buy offers, column Exchange rate BTC will be 0.00000000 and in Exchange rate LTC will be actual price. On this way you not need to show result (coin>ltc>btc) on the site but you can use it to calculate better rankings. If some coin not have BTC and not have LTC buy offers you can set to this coin to not show at website, or to show just at bottom. So basicly you can make BTC and LTC mining profitability overview on the same page, what is in my opinion also great idea, because most of miners look are coin profitable to mine compared to LTC. "If i can get more then if i mine LTC i will mine coin, if i can get less i will mine LTC." If you get what is my point. Maybe similar LTC mining profitability overview site already exist, but i dont hear for them.