How To Calculate The Percentage Movement Between Two Amounts, For Example: From 3,599,250 To 1,394,880 And The Other Way Around: The % Movement Between 1394880 And 3599250? Is This The Same As The Percentage Difference Between The Two Amounts?

Yes, it is the same as the percentage difference.  It is calculated as   "movement" = ((to amount) - (from amount))/(from amount)*100% First case   (1394880-3599250)/3599250*100% = -2204370/3599250*100% ≈ -61.245%   The first amount decreased approximately 61% to get to the second amount.  Second case   (3599250-1394880)/1394880*100% = 2204370/1394880*100% ≈ +158.03%   The first amount increased about 158% to get to the second amount.