Sammal Cardigan: Measuring and Calculating Gauge

Here is a video showing how to measure and calculate gauge on a swatch for the Sammal Cardigan, by Joji Locatelli.  The swatch is worked in Sand Stitch that is describe in a video shown here: https://www.chaiknucklesknitting.com/blog/2018/7/15/sammal-cardigan-understanding-sand-stitch