The left axis measures sales dollars and the right axis measures gross margin percentage. You can change the color of a data point for one several or all data elements in the visualization. Power BI creates two Y axes allowing the values to be scaled differently.
Because we started with a visualization with one formatted Y-axis Power BI created the second Y-axis using the same settings.
Now name the new column as Quarter. You might have wondered that there is no DAX Quarter function in Power BI. To to this we will copy the portions of the two previously created measure to create the percent change calculation which follows the formula New Value Old Value- 1. No you not need to re-add it you can open the advanced editor to see the full form of it then you can modify it on formula bar or advanced editor.