Completing the World Cup sticker album costs R$560, says mathematician

In an interview with Estado de S. Paulo, the mathematician and professor at the Institute of Mathematics, Statistics and Scientific Computing at Unicamp, Sebastião de Amorim, says that 280 packages are needed to complete the game. Since they are sold for R$2 each, this results in an expense of R$560 - when added to the album, the total value is R$567,90. In Amorim's account, the exchange of stickers was disregarded.