Read this calculation example:
Month Payout/Weekly per 10 GH/s (fictional 25% Difficulty+ each 2nd week)
April 14 0,00575246 BTC
April 14 0,00460197 BTC
April 14 0,00460197 BTC
April 14 0,00368157 BTC
May 14 0,00368157 BTC
May 14 0,00294526 BTC
May 14 0,00294526 BTC
May 14 0,00235621 BTC
June 14 0,00235621 BTC
June 14 0,00188497 BTC
June 14 0,00188497 BTC
June 14 0,00150797 BTC
July 14 0,00150797 BTC
July 14 0,00120638 BTC
July 14 0,00120638 BTC
July 14 0,00096510 BTC
August 14 0,00096510 BTC
August 14 0,00077208 BTC
August 14 0,00077208 BTC
August 14 0,00061767 BTC
September 14 0,00061767 BTC
September 14 0,00049413 BTC
September 14 0,00049413 BTC
September 14 0,00039531 BTC
October 14 0,00039531 BTC
October 14 0,00031624 BTC
October 14 0,00031624 BTC
October 14 0,00025300 BTC
November 14 0,00025300 BTC
November 14 0,00020240 BTC
November 14 0,00020240 BTC
November 14 0,00016192 BTC
December 14 0,00016192 BTC
December 14 0,00012953 BTC
December 14 0,00012953 BTC
December 14 0,00010363 BTC
January 15 0,00010363 BTC
January 15 0,00008290 BTC
January 15 0,00008290 BTC
January 15 0,00006632 BTC
February 15 0,00006632 BTC
February 15 0,00005306 BTC
February 15 0,00005306 BTC
February 15 0,00004245 BTC
March 15 0,00004245 BTC
March 15 0,00003396 BTC
March 15 0,00003396 BTC
March 15 0,00002717 BTC
April 15 0,00002717 BTC
April 15 0,00002173 BTC
April 15 0,00002173 BTC
April 15 0,00001739 BTC
May 15 0,00001739 BTC
May 15 0,00001391 BTC
May 15 0,00001391 BTC
May 15 0,00001113 BTC
June 15 0,00001113 BTC
June 15 0,00000890 BTC
June 15 0,00000890 BTC
June 15 0,00000712 BTC
July 15 0,00000712 BTC
July 15 0,00000570 BTC
July 15 0,00000570 BTC
July 15 0,00000456 BTC
August 15 0,00000456 BTC
August 15 0,00000365 BTC
August 15 0,00000365 BTC
August 15 0,00000292 BTC
September 15 0,00000292 BTC
September 15 0,00000233 BTC
September 15 0,00000233 BTC
September 15 0,00000187 BTC
October 15 0,00000187 BTC
October 15 0,00000149 BTC
October 15 0,00000149 BTC
October 15 0,00000119 BTC
November 15 0,00000119 BTC
November 15 0,00000096 BTC
November 15 0,00000096 BTC
November 15 0,00000076 BTC
December 15 0,00000076 BTC
December 15 0,00000061 BTC
December 15 0,00000061 BTC
December 15 0,00000049 BTC
January 16 0,00000049 BTC
January 16 0,00000039 BTC
January 16 0,00000039 BTC
January 16 0,00000031 BTC
February 16 0,00000031 BTC
February 16 0,00000025 BTC
February 16 0,00000025 BTC
February 16 0,00000020 BTC
March 16 0,00000020 BTC
March 16 0,00000016 BTC
March 16 0,00000016 BTC
March 16 0,00000013 BTC
April 16 0,00000013 BTC
April 16 0,00000010 BTC
April 16 0,00000010 BTC
April 16 0,00000008 BTC
May 16 0,00000008 BTC
May 16 0,00000007 BTC
May 16 0,00000007 BTC
May 16 0,00000005 BTC
Total 0,05177167 BTC (Investment was 0,064 BTC)
This is a total lost of around EUR 4,00€ per 10 GH/s contract !!!