How to calculate SoftDevice usage

I am attempting to increase the MTU size on s132 3.0.0 and need to increase the available SoftDevice RAM unproportionally.

For every MTU byte I need to give dozens of bytes to the SD RAM.

I am unable to find any documentation on how to calculate the proper SD RAM usage based on vs_uuid count and MTU size for all softdevices.

Could anyone point me to a document where I can find the formula without having to rely on the SD error message upon boot?

Thanks!

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