How to move from Nanjing Airport to Jinling Riverside Hotel?

Oh, this hotel is highly recommended. It wins high popularity among tourists. And the hotel provides comfortable living environment and warm service. So you can stay there.
If you wanna take a taxi from the airport to the hotel, the cab fare is CNY 130-140 in the day time. And it takes around 45 mins on the way. No direct public transportation can take you to the hotel. Thus taking the cab would be the best choice for you. Have fun!

And how much would be good at night time? I heard cab charges nearly $50-$80 per 40 KM
Is that information incorrect then?

The cab fare of an official cab is CNY 160-170 at night. You can easily find the official one at the airport. And the car always has taximeter.