Inverting a raster surface changes the highest cell values to the lowest and vice versa. The image below shows the original (before) and inverted (after) raster layer. Both layers use the same stretched symbology color ramp. The color difference between both raster layers show the change of the highest cell values to the lowest and vice versa.
The instructions below describe how to invert a raster surface.
Note: If the minimum, maximum, mean, and standard deviation values are blank, calculate the statistics for the raster layer before proceeding. In the Catalog pane, right-click the raster layer, and click Calculate Statistics.
(("Rasterlayer" - Max_value) * -1) + Min_value