if we add power cost calculation :
if we have 222 days from the beginning we have
2285714 S9 i Aantminers * 5328 hours * 1.320 KWh ( each device power usage ) * ( 0.05 /KWh = 803,766,756 $
total cost = device cost + power cost = 1,828,571,428 + 803,766,756 = 2,632,338,184 $
BTC price estimation for device cost and power cost: 5161 $