the price of tickets from shanghai airport to nanjing city center and where can we get it ?

Hi I have just got back from there the subway train from the airport should be only 2 or 3 yuan then Shanghai to Nanjing on G7054 ( the G stands for the High speed train so do not get a D,E or F train) at 12:19 and it cost 139.50 yuan for a second class ticket. if you are by your self make sure you ask for a window seat when you buy you ticket. There are four classes on the G class High speed train from the second class then first class then business class and top of the list is V.I.P. class