The financing balance of the two cities increased by 217 million yuan.

[financing balance of the two cities increased by 217 million yuan] as of June 7, the financing balance of the Shanghai Stock Exchange was 792.864 billion yuan, 668 million yuan less than the previous trading day; the financing balance of the Shenzhen Stock Exchange was 720.61 billion yuan, an increase of 885 million yuan over the previous trading day; the two cities totaled 1513.474 billion yuan, an increase of 217 million yuan over the previous trading day.