Between 50 and 60 posts at the end of the campaign: x1,25 stakes multiplier
Between 60 and 70 posts at the end of the campaign: x1,5 stakes multiplier
Between 70 and 80 posts at the end of the campaign: x1,75 stakes multiplier
Between 80 and 90 posts at the end of the campaign: x2 stakes multiplier

  On this view once you reach 55 to 60 post you will have additional x 1.25 stakes if I am not mistaken.
  Then between 60 to 70 post you will have additional x 1.5 stakes
  Therefore, below 50 post before end of the ico your not entitle or qualify for the stakes.
  just simple as that.