-77.78% is the change from 891 to 198
Calculation steps:
[( 198 - 891 ) ÷ 891] x 100 = -77.78%
Formula
Percentage change = [(198 - 891) / 891] x 100
Subtract the new number by the original number
198 - 891 = -693
-693 ÷ 891 = -0.7777777777777778
-0.7777777777777778 x 100 = -77.78%