Nondestructive layer-based "offset" replacement for Apply Image?

I'm wondering if layers can be used for a nondestructive equivalent to the Apply Image function in some cases. Specifically, I am trying to replicate:

Apply Image; RGB channel; Blending: Subtract; Opacity 100%; Scale 1; Offset 50.

Simply using the "layer to be applied" as a layer above the "layer to be applied to," with Subtract blending, works... except for the Offset. Am I missing something easy there? Is it a basic Levels adjustment on the "layer to be applied" that can replicate the Offset in the Apply Image dialog?

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Separately, are there other resources regarding workarounds for using nondestructive workflows vs. Apply Image? I know it's very powerful, and might not be easily replicated in most cases.

Any help much appreciated.