295x2 almost similar to 2 x 290x, 290x produced with 44 chips and each gpu on 295x2 also have 44 chips, 88 in total. Referring to this https://www.nicehash.com/profitability-calculator/amd-r9-290x?e=0.1¤cy=USD , most profitable algorithm for 295x2 is Crytonight and second ones are Equihas.

Ok, referring to the result on mine and your link

GTX 1080ti (Electricity costs=0) = 0.00043921 BTC/day
290X (Electricity costs=0) = 0.00025 BTC/day. And then, 1 x (295x2) = 2 x (290x), So your 295x2 will produce 0.00025 x 2 = 0.0005 BTC/day.