Orange essence values PBE vs LIVE

I've just compared the cost to upgrade and disenchant a 975 RP skin, that requires 675 OE to be upgraded into a permanent skin on both PBE and LIVE, but when it comes to disenchanting it gives 325 OE on LIVE while on PBE it gives only 195. I'm wondering if this is some sort of bug or it will actually go to the live servers once preseason hits.
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