Richard, I think the original news item & your comment both hold water.
The country has a 5 baht coin. Most things, outside of supermarkets, will move by 5 baht (+/-). When noodles are 40 baht, that is a fair rise. Yesterday=40 baht, today 45 baht.
I watched our chicken rice vendor go from 40...45 & now 50.
Your perception of skyrocketing is different to mine, which is fair enuff.ππ