Destiny\Character\InventoryItem::gPercentToNextLevel PHP Method

    protected function gPercentToNextLevel()
    {
        if ($this->isGridComplete) {
            return 100;
        }
        if (!$this->progression['nextLevelAt']) {
            return 100;
        }
        return $this->progression['progressToNextLevel'] / $this->progression['nextLevelAt'] * 100;
    }