def _transform_value(self, instance, counter_id, value):
        i_key = self._instance_key(instance)
        if counter_id in self.metrics_metadata[i_key]:
            unit = self.metrics_metadata[i_key][counter_id]['unit']
            if unit == 'percent':
                return float(value) / 100

        # Defaults to return the value without transformation
        return value
Given the counter_id, look up for the metrics metadata to check the vsphere
dataset/ETHPy150Open serverdensity/sd-agent/checks.d/vsphere.py/VSphereCheck._transform_value