How do I find the inverse of this equation?

When transitioning out of a layout I apply the pixellate the transition so it get's more pixellated over time using this equation (taken from an example project):

set parameter 0 to: ((time-transStartTime) / transDuration) * 100

I need to find the inverse of this so that I can start the next layout "pixellated" and get less pixellated over time.

Thanks!

100 - (the equation) should work.

—

Try (1-(time-transStartTime)/transDuration)*100

...which is the same as Magistross (beat me to it!)

That's it! Thank you both!