def price_to_book_value(price_per_share, book_value_per_share):
    """Computes price to book value.

    @params
    -------
    price_per_share: share price
    book_value_per_share: book value per share

    returns
    -------
    Price to book value, int or float

    explanation
    -----------

    """
    return price_per_share / book_value_per_share
