Answer and Explanation:
a. The journal entries are shown below
Cost of goods sold ($354,700 - $331,550) $23,150
To Allowance for reduction in inventory to NRV $23,150
(Being allowance for reduction is recorded)
Allowance for reduction in inventory to NRV ($23,150 - ($413,510 - $394,540)) $4,180
To Cost of good sold $4,180
(being recording of the previous loss)
These two entries should be recorded at LCNRV method