this is wath i calculated with 50GH/s with the price of 83usd (the price of 50GH/S with the bank fee) can this be correct? i will newer ever come close to roi if the currecy stay at this level??

During   Bitcoin per day   Revenue per day   Income per day   difficulty   total day   total BTC   total Income   amount to break even
Oct-12-14 - Oct-21-14   0.0009 BTC   $0.34   $0.24   35,002,482,026   10 days   0.01BTC   $2.39   $-80.61
Oct-22-14 - Nov-03-14   0.0009 BTC   $0.33   $0.23   36,500,588,257   23 days   0.02BTC   $5.33   $-77.67
Nov-04-14 - Nov-16-14   0.0009 BTC   $0.31   $0.21   38,062,813,434   36 days   0.03BTC   $8.08   $-74.92
Nov-17-14 - Nov-29-14   0.0008 BTC   $0.3     $0.2           39,691,901,849   49 days   0.04BTC   $10.68   $-72.32
Nov-30-14 - Dec-12-14   0.0008 BTC   $0.29   $0.19   41,390,715,248   62 days   0.05BTC   $13.11   $-69.89
Dec-13-14 - Dec-25-14   0.0008 BTC   $0.28   $0.18   43,162,237,861   75 days   0.06BTC   $15.39   $-67.61
Dec-26-14 - Jan-07-15   0.0007 BTC   $0.26   $0.16   45,009,581,641   88 days   0.07BTC   $17.52   $-65.48
Jan-08-15 - Jan-20-15   0.0007 BTC   $0.25   $0.15   46,935,991,736   101 days   0.08BTC   $19.51   $-63.49
Jan-21-15 - Feb-02-15   0.0007 BTC   $0.24   $0.14   48,944,852,182   114 days   0.09BTC   $21.37   $-61.63
Feb-03-15 - Feb-15-15   0.0006 BTC   $0.23   $0.13   51,039,691,855   127 days   0.1BTC   $23.09   $-59.91
Feb-16-15 - Feb-28-15   0.0006 BTC   $0.22   $0.12   53,224,190,667   140 days   0.11BTC   $24.7   $-58.3
Mar-01-15 - Mar-13-15   0.0006 BTC   $0.21   $0.11   55,502,186,027   153 days   0.11BTC   $26.18   $-56.82
Mar-14-15 - Mar-26-15   0.0006 BTC   $0.21   $0.11   57,877,679,589   166 days   0.12BTC   $27.55   $-55.45
Mar-27-15 - Apr-08-15   0.0005 BTC   $0.2           $0.1           60,354,844,276   179 days   0.13BTC   $28.81   $-54.19
Apr-09-15 - Apr-21-15   0.0005 BTC   $0.19   $0.09   62,938,031,610   192 days   0.14BTC   $29.96   $-53.04
Apr-22-15 - May-04-15   0.0005 BTC   $0.18   $0.08   65,631,779,363   205 days   0.14BTC   $31.01   $-51.99
May-05-15 - May-17-15   0.0005 BTC   $0.17   $0.07   68,440,819,520   218 days   0.15BTC   $31.97   $-51.03
May-18-15 - May-30-15   0.0005 BTC   $0.17   $0.07   71,370,086,596   231 days   0.15BTC   $32.84   $-50.16
May-31-15 - Jun-12-15   0.0004 BTC   $0.16   $0.06   74,424,726,302   244 days   0.16BTC   $33.61   $-49.39
Jun-13-15 - Jun-25-15   0.0004 BTC   $0.15   $0.05   77,610,104,588   257 days   0.17BTC   $34.3   $-48.7
Jun-26-15 - Jul-08-15     0.0004 BTC   $0.15   $0.05   80,931,817,064   270 days   0.17BTC   $34.91   $-48.09
Jul-09-15 - Jul-21-15     0.0004 BTC   $0.14   $0.04   84,395,698,834   283 days   0.18BTC   $35.44   $-47.56
Jul-22-15 - Aug-03-15   0.0004 BTC   $0.14   $0.04   88,007,834,744   296 days   0.18BTC   $35.9   $-47.1
Aug-04-15 - Aug-16-15   0.0004 BTC   $0.13   $0.03   91,774,570,072   309 days   0.18BTC   $36.28   $-46.72
Aug-17-15 - Aug-29-15   0.0003 BTC   $0.12   $0.02   95,702,521,671   322 days   0.19BTC   $36.59   $-46.41
Aug-30-15 - Sep-11-15   0.0003 BTC   $0.12   $0.02   99,798,589,598   335 days   0.19BTC   $36.84   $-46.16
Sep-12-15 - Sep-24-15   0.0003 BTC   $0.11   $0.01     104,069,969,233  348 days   0.2BTC   $37.02   $-45.98
Sep-25-15 - Oct-07-15   0.0003 BTC   $0.11   $0.01     108,524,163,916   361 days   0.2BTC   $37.15   $-45.85
Oct-08-15 - Oct-20-15   0.0003 BTC   $0.1     $0       113,168,998,132   374 days   0.21BTC   $37.21   $-45.79
Oct-21-15 - Oct-22-15   0.0003 BTC   $0.1     $0        118,012,631,252  376 days   0.21BTC   $37.21   $-45.79