-80.14% is the change from 997 to 198
Calculation steps:
[( 198 - 997 ) ÷ 997] x 100 = -80.14%
Formula
Percentage change = [(198 - 997) / 997] x 100
Subtract the new number by the original number
198 - 997 = -799
-799 ÷ 997 = -0.8014042126379137
-0.8014042126379137 x 100 = -80.14%