-77.43% is the change from 855 to 193
Calculation steps:
[( 193 - 855 ) ÷ 855] x 100 = -77.43%
Formula
Percentage change = [(193 - 855) / 855] x 100
Subtract the new number by the original number
193 - 855 = -662
-662 ÷ 855 = -0.7742690058479532
-0.7742690058479532 x 100 = -77.43%