The price in most Chinese translation companies in subtitling is around 100 RMB(around 15 USD).
I think it is a reasonable price as it involves three major steps of dictating, translation and production of timeline. A minute of the video usually takes up to 20 minutes to 30 minutes to process all of them.
I also charge this price from some media companies that I have worked with and they are in agreement with me once I explain such efforts needed to produce high-quality subtitles.
Another tip from my personal practices is that, considering the subject, the length and the intensity of words distribution, the price is subject to around 10% discount.
Wow. that is a very high rate. lucky of you. and maybe it depends on the value of money in the target language country. could it be alright?
I had somework from chinese company and the rate for subtitling + translation is below 3 USD per video minute.