-75.91% is the change from 855 to 206
Calculation steps:
[( 206 - 855 ) ÷ 855] x 100 = -75.91%
Formula
Percentage change = [(206 - 855) / 855] x 100
Subtract the new number by the original number
206 - 855 = -649
-649 ÷ 855 = -0.7590643274853801
-0.7590643274853801 x 100 = -75.91%