Random bad lines that just get you stuck?

From last episode the pathologist, a medical doctor, says “yea I needed a calculator for that one too” when wowing at how one could calculate 20% 🙄🙄🙄🙄🙄🙄
I know it’s so dumb but I had to rewind it 5x bc I couldn’t stop thinking about it and just focus on the show lolol

(($12.34, move decimal one place to the left for 10%, so 10% of $12.34 = $1.23….. you get it)