How much is the fare from shanghai to beijing? And how much is the fare for adult and child per head

The G-types from Shanghai Hongqiao have different seat class available. For business seat, it will be CNY1748, for first class seat is would cost CNY933 and for second class seat the price is CNY553. The child under 120cm can board the train for free but can only share the ticket with adults. The fare for child between 120cm to 150cm is half of the full price.