Do you know how to measure NCI?

So, what are the options of how non-controlling interest (NCI) can be measured? There are, of course, consequences to the measurement of goodwill and accounting for impairment losses.
Lucky for us all we have top tutor Tom Clendon to explain it! Check out his full page feature in the latest issue (on p22): https://issuu.com/pqpublishing/docs/pq_jan24_combined.