Answer:
a) Decrease goodwill by $13,000
Step-by-step explanation:
In IFRS, whenever recoverable amount of a cash generating unit is less than the carrying amount, an impairment loss is recognized. After calculating an impairment loss, it is then allocated to the carrying amount of Cash generating unit's goodwill.
Impairment loss in this case is = Total carrying amount - Recoverable amount of CGU = $45,000 - $32,000 = $13,000. Hence, the impairment loss will be allocated to the carrying value of the goodwill, leading to decrease in goodwill by $13,000.