Teaching pay in Taiwan is often considered high, around $700- $1,000/month depending on your spending habits.
I worked full-time at a kindergarten and cram school teaching English in Taipei. I made roughly $2200 per month working 25 teaching hours per week. I spent about 5 hours of prepping of those hours, so it came out to roughly 30ish hours per week of total work. Rent was pretty much $300 per month and I spent around $1000 per month on going out, traveling, nice dinners, public transport, cell phone, and other miscellaneous bills. So at the end of the month, I was saving around $800-$900. – I definitely could have saved much more.
All my $$$ is in USD by the way.