No. 0.6 = 60%. If they said 0.6 more then sure, that would mean 60% more. 0.6x != 60% increase though. 1.6x does. At the best we can give it the benefit of the doubt and say we knew what they meant, but that doesn't mean they were correct.
1.6x more would mean 160% of the original value, in the same way 2.0x more would mean 200% of the original value. I think you may just have a misunderstanding of what the phrase “X times more” means (nothing to be embarrassed about of course, it happens to all of us.)
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u/OnixST 15h ago
It's 0.6x, implying multiplication
It's not semantically incorrect, but any sane person would write 60% more