Please could someone explain why in SA4 Additional Mock Exam 3, Q2 (iii), when calculating pension cost, the solutions split the pension cost into calculating over a 9 month period, then over a 3 month period - specifically the calculation of interest cost includes calculating net liability and net asset at 1 Oct then at 31 Dec, but in September 2021 Q2 (iv), when calculating pension cost, we can make an assumption of "ignoring cashflows and buyout" and simply calculate over the whole year, e.g. the net interest calculated as surplus at start date x discount rate.
Just want to understand what caused the difference in approach!
Just want to understand what caused the difference in approach!