Hacker News Reader

Yes, our newborn was our fastest growing child for a long time! In fact, his growth outpaced all other children we knew going all the way back until the previous child was born. Adjusted for "inflation" though, I'm told it was only average growth.

relevant, as always: https://xkcd.com/1102/

And if you're told something "increased by 150%", for example, make sure it really is 150% and not just 50%.

Generally speaking, you'll want to present both. "From 6th to 7th grade, I went from 200 cm to 205 cm in height, a 2.5% increase." Otherwise, as you say, people will ask for N= or for %, or even starting asking for median IQR and statistical tests of difference. I do tire of oversimplistic analyses in popular media which present whichever one of the above measures is most in line with their narrative.

That's a very tall 12 year old!

It could be the GP is just very slow and was still in 6th grade as a 16 year old :)