def product_consumption_rate(total_items, total_orders):
    """Returns the average number of units per order.

    Args:
        total_items (int): Total number of items of a SKU sold during a period.
        total_orders (int): Total number of orders during a period.

    Returns:
        Average number of units per order.
    """

    return (total_items / total_orders) * 100