Hello. I'm a translator and transcriptionist, fluent in English, Bengali, Hindi, and Korean. The 400/hour that I quoted for this project is not for the audio hour, but the hour it takes me to transcribe. Usually, I can transcribe 10-15 minutes of audio every hour. I would need to listen to a sample of your file before giving an accurate quote, since the language and accent can increase the difficulty level.
Let me know if that sounds reasonable.
Thanks,
Handsonkeyboard