au56

public class Movement : MonoBehaviour, IBeginDragHandler, IDragHandler, IEndDragHandler
{
    private Vector2 lastMousePosition;
    private Vector2 currentMousePosition;

    public void OnBeginDrag(PointerEventData eventData)
    {
        lastMousePosition = eventData.position;
    }

    public void OnDrag(PointerEventData eventData)
    {
        currentMousePosition = eventData.position;
        Vector2 difference = currentMousePosition - lastMousePosition;
        Vector3 newPosition = transform.position + new Vector3(difference.x, difference.y, transform.position.z);
        Panel.transform.position = newPosition;
        lastMousePosition = currentMousePosition;
    }
}