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.
Hey, ok so the center, coordinates 08.1 / 63.4 spinos will spawn there, if is not high enough just kill it, leave the area and come back after 3 mins. Normally works, I found a 150 and I'm taming it rn
stand on a high cliff and shoot it or keep shootong it and running away on a raptor until it's knocked out. it gets distracted very easly by fish, sharks and manta's (even while chasing you) so you may want to shoot it while it's distracted.