Function "bondedTargetRewardUnlock" returns wrong values in the wrong range

What's the issue?

You communicated that rewards are locked for either 6 months or until 80% of the network is staked. The bonded ratio starts at 80% and should decrease by 1% each week (so after e.g. 8 weeks it should be at ~72%).

Current Implementation

This function should return values from 80 down to 0. What it actually does is returning values from 100 down to 0.

function bondedTargetRewardUnlock() public view returns (uint256) {
  uint256 passedTime = block.timestamp.sub(unbondingStartDate());
  uint256 passedPercents = PERCENT_UNIT.mul(passedTime).div(unbondingPeriod()); // total duration from 0% to 100% is unbondingPeriod
  if (passedPercents > PERCENT_UNIT) {
    return 0;
  }
  return PERCENT_UNIT - passedPercents;
}

New implementation

So I'd suggest the following changes:

function bondedTargetStart() public pure returns (uint256) {
  return 80;
}

// ...

function bondedTargetRewardUnlock() public view returns (uint256) {
  uint256 passedTime = block.timestamp.sub(unbondingStartDate());
  uint256 passedPercents = PERCENT_UNIT.mul(passedTime).div(unbondingPeriod());
  if (passedPercents > bondedTargetStart()) {
    // Limit passed percents to bondedTargetStart() as this is the maximum value
    passedPercents = bondedTargetStart();
  }
  return bondedTargetStart() - passedPercents;
}