The following is the collection statistics of Cai Ying Primary School Library (1). How many books are there in Cai Ying Primary School Library? (2) What percentage of all kinds of books account for the total collection? (1)690+540+990+780=3000 (Ben),

Cai Ying primary school library has 3000 books.

(2) Literature books: 690÷3000× 100%=23%,

Album: 540 ÷ 3000×100% =18%,

Science and technology books: 990÷3000× 100%=33%,

Storybook: 780÷3000× 100%=26%,

A: Literature books account for 23% of the total collection, picture books account for 18%, science and technology books account for 33%, and story books account for 26%.

(3) As shown in the figure,