Remove duplicate Percent unit.
Remove duplicate Percent unit.

maherkassim/UnitsNet,anjdreas/UnitsNet,neutmute/UnitsNet,BrandonLWhite/UnitsNet,Tirael/UnitsNet,BrandonLWhite/UnitsNet,maherkassim/UnitsNet,BoGrevyDynatest/UnitsNet,anjdreas/UnitsNet