-79.5% is the change from 966 to 198
Calculation steps:
[( 198 - 966 ) ÷ 966] x 100 = -79.5%
Formula
Percentage change = [(198 - 966) / 966] x 100
Subtract the new number by the original number
198 - 966 = -768
-768 ÷ 966 = -0.7950310559006211
-0.7950310559006211 x 100 = -79.5%