and this one Paul acquired 75% of the share capital of Simon on 1 January 20X1. On this date, the net assets of Simon were $80,000. The non-controlling interest was calculated using fair value, which was calculated as $40,000 at the date of acquisition. At 1 January 20X3 the net assets of Simon were $120,000 and goodwill had been impaired by $10,000. What was the value of the non-controlling interest at 1 January 20X3?