Ceramics marked Nippon means that the piece was made in Japan between 1891 and 1921. In 1891, the McKinley Tariff Act mandated that the country of origin be marked on objects imported into the United States of America. The designation Nippon changed to Japan in 1921. Products marked Nippon are in high demand. Japanese porcelain artists were taught European techniques of decorating vases, bowls, cups, etc.
Values can range widely from one hundred dollars to thousands of dollars depending on quality, condition, type, and size. The moriage technique, for example, adds to value. Moriage pieces are hand painted and gilded with gold leaf. A relief or raised area was created by piping clay details.
Before you can know the value of your bowl, you need to identify your piece. Research in a book or online. May I suggest searching in the
"'Collector's Encyclopedia to Nippon Porcelain" by Joan Van Patten which is available used in several volumes. These are older books so will not show current values. Once you identify your bowl, you can comparison shop online.
Beware of reproductions which are not valuable. You can learn about fakes in the above-mentioned books or search online once you identify your piece.