Lots of people go by 10% of the body weight. I go a bit higher than that and feed every 7 days after the snake hits about 200g or so. The little lump it left look good to my eye, but I wouldn't feed again for 7 days. I'm sure you might know to not pick up the snake now for the next 2 days (unless to change it substrate, put in fresh water, etc.)
Yea!!! Successful feed!!!