func: function createVestingContractWithConstantPercent(
          address _benificiary,
          uint _cliff,
          uint _vestingPeriod,
          address _tokenAddress,
          uint _periodPercent
  	)
  	public
      onlyOwner
  	returns (address vestingContract)
  	{		
          vestingContract = new TokenVestingWithConstantPercent(
  			_benificiary,
  			_cliff,
  			_vestingPeriod,
  			_tokenAddress,
  			_periodPercent
          );
          investorToVesting[_benificiary] = vestingContract;
          emit VestingContractCreated(tx.origin, vestingContract);
      }