Sort Sub-Cat by Sales (2018) instead of Sales (Total)

Hi all,

I would like to sort sub-category by the 2018 % of sales but at the moment the sort is on total sum of sales. Therefore the first category should be Bookcases, then Copiers, then Fasteners etc etc while keeping the 2017 % besides it. Can anyone help??

Thanks in advance,

Nathan

Tableau workbook attached: v2018.1 but I can open 2019.1