When using dollar-value LIFO, if the incremental layer was added last year, it should be multiplied by last year's cost ratio and this year's index. this year's cost ratio and this year's index. last year's cost ratio and last year's index. this year's cost ratio and last year's index.

When using dollar-value LIFO, if the incremental layer was added last year, it should be multiplied by last year's cost ratio and this year's index. this year's cost ratio and this year's index. last year's cost ratio and last year's index. this year's cost ratio and last year's index