-77.47% is the change from 879 to 198
Calculation steps:
[( 198 - 879 ) ÷ 879] x 100 = -77.47%
Formula
Percentage change = [(198 - 879) / 879] x 100
Subtract the new number by the original number
198 - 879 = -681
-681 ÷ 879 = -0.7747440273037542
-0.7747440273037542 x 100 = -77.47%