Making Gold with Enchantment?

Hey everyone,I’ve read through many posts, watched many videos and asked a lot of people but I don’t seem to understand.I know the trick with shuffling, flipping and selling Mats/Enchants according to marketpriceBut what I don’t seem to get is how someone can make over 500.000g a month with enchantment.The most win I can make is like a at most 20g from shuffling Leylight Shard into ArcanaHow do you Enchanters make your gold?EDIT: for context, I have only rank 2 recipes, no rank 3 ones via /r/woweconomy https://ift.tt/2GkSvhi