How To Calculate The Percentage Of Movement From One Amount To Another? For Example; From 3599250 To 1394880 And Also The Other Way Around: 1394880 To 3599250. Is This The Same As The Percentage Difference Between The Two Amounts?

A percentage change is computed as
  (change in %) = ((new value) - (old value))/(old value)*100%

For your two problems, you have
1. (1394880 - 3599250)/(3599250)*100%
  = (-2204370)/3599250*100%
  ≈ -0.61245*100%
  ≈ -61.2%
2.  (3599250 - 1394880)/(1394880)*100%
  = 2204370/1394880*100%
  ≈ 1.58033*100%
  ≈ 158.0% Note that the percentage difference between the amounts depends on which one you choose as the "old value".