Can I count dynamically just use Django admin and write func

"""I would like to develop a management system in `Python` with Django, `Django admin site` satisfies part of needs almost.

I have several models as below, suppose there is 1 cabinet, and the cabinet has 6 layers, every layer can hold 80 books, so when I place a book on a layer, the number of cabinet, layer and panel need to be selected or input, the usage amount and surplus of cabinet need to be displayed dynamically.

I really want to use admin page, just admin page, can I achieve it? Really appreciate for any advice.
"""
    class Cabinet(models.Model):
        number = models.CharField(max_length=128, verbose_name="Cabinet Number", null=True)
        history = HistoricalRecords()

        class Meta:
            verbose_name = 'Number of Cabinet'
            verbose_name_plural = verbose_name


    class Layer(models.Model):
        number = models.CharField(max_length=128, verbose_name="Layer Number", null=True)
        history = HistoricalRecords()

        class Meta:
            verbose_name = 'Number of Layer'
            verbose_name_plural = verbose_name


    class Panel(models.Model):
        number = models.CharField(max_length=128, verbose_name="Panel Number", null=True)
        history = HistoricalRecords()

        class Meta:
            verbose_name = 'Exact Position of Paper(Panel Number)'
            verbose_name_plural = verbose_name

    class Book(models.Model):
        cabinet_no = models.ForeignKey(
            Cabinet,
            on_delete=models.CASCADE, verbose_name="Cabinet No.",
            related_name="+", null=True, blank=True)
        layer_no = models.ForeignKey(
            Layer,
            on_delete=models.CASCADE, verbose_name="Layer No.",
            related_name="+", null=True, blank=True)
        position = models.ForeignKey(
            Panel,
            on_delete=models.CASCADE, verbose_name="Panel No.",
            related_name="+", null=True, blank=True)
        amount = models.CharField(max_length=128, verbose_name="Book Amount", null=True)