Sort data in pivot table based on value outside pivot table

[loggiaaj]

So I'm having a problem sorting data in a pivot table based on a "delta" formula outside pivot table; e.g. outside is % Delta, Inside pivot is all other data

Dimension Question 2016 2017 % Delta
My Work Experience 84.8% 87.3% 3%
My Work Experience 86.0% 87.8% 2%
My Work Experience 82.2% 83.1% 1%
My Work Experience 90.5% 92.1% 2%
My Work Experience 93.8% 92.4% -1%
My Work Experience 87.2% 88.6% 1%