How can i invert a graph item in Dash Studio?

I'm trying to make a graph of my delta, from +10 to -10. However inputting it that way means that the graph is stuck at minimum value, because minimum is higher than maximum. so i have to put it the other way around.... but now it doesnt feel logical, the "good value" (negative delta) is under the "bad value" (positive delta). Is there any way to simply flip the graph? i've tried negative height but it doesnt work...