Cobra 148 gtl 10 turn clairifier

I installed one of those $4.99 blue Bourns brand 20k 10 turn pots, in my 1992 made in the Malaysia cobra 148 gtl.

My question is why does the clairifier track backwards now? turn it to the right and the frequency goes down/ turn it to the left and the frequency goes up.

These are the instructions I used.