Question 852443
Let's use 100 for the sake of simplicity.
100 is increased by 40% ({{{2/5}}})
What is the new total?
140
140 is now decreased by 40%
140 * .6 (reciprocal) = 84
.
The final ratio is 100:84, or reduced to 25:21

ETA: I multiplied by .6 because that is the reciprocal of .4.  It's the same as 100% - 40%.  Just did a step in my head.
Here's without the reciprocal:
140 is now decreased by 40%.
140 * .4 = 56
140 - 56 = 84
.
I combined them by subtracting .4 from 1.  Either way works.  Sorry for the confusion.