RSA Corporation had the following items in inventory as at December $31,2023$: $[[$Item No$.,$Quantity,$[[$Unit$],[$CItost$]],$NRV$],[$A$1,100,3\mathrm{.}00,3\mathrm{.}30$ Prepare the year$-$end adjusting entry required to adjust the lower cost or net realizable value on an item$-$by$-$item basis using the direct method.