-76.92% is the change from 858 to 198
Calculation steps:
[( 198 - 858 ) ÷ 858] x 100 = -76.92%
Formula
Percentage change = [(198 - 858) / 858] x 100
Subtract the new number by the original number
198 - 858 = -660
-660 ÷ 858 = -0.7692307692307693
-0.7692307692307693 x 100 = -76.92%