As others have already pointed out, the values for raw mutton are off. You need more mutton & narcotics!

I now tamed a 112 Spino on Aberration with 2x taming multiplier. I used mutton only and it ate 30-40 raw mutton (opposed to the 27 calculated). Each piece gave ~3% taming progress, so it finished with ~92% Taming effectiveness. I got 51 bonus levels (calculator said 53).

What you should take away from this: raw prime fish is faster than mutton and as it seems (needs confirmation) produces atleast as many bonus levels as mutton.

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