-75.58% is the change from 819 to 200
Calculation steps:
[( 200 - 819 ) ÷ 819] x 100 = -75.58%
Formula
Percentage change = [(200 - 819) / 819] x 100
Subtract the new number by the original number
200 - 819 = -619
-619 ÷ 819 = -0.7557997557997558
-0.7557997557997558 x 100 = -75.58%