I have been to the more advanced recommended time gallery, which is quite good. The cheapest one there is 150 yuan, and there are hundreds more. At that time, 150 was the cheapest, but the effect was already very good. Not very recommended.
If you want something cheaper, the hair salon near Zhanjiang Normal University is also good and very affordable. Several of my classmates have been there, and the effect is ok. The price is around 50- 100.