-79.94% is the change from 987 to 198
Calculation steps:
[( 198 - 987 ) ÷ 987] x 100 = -79.94%
Formula
Percentage change = [(198 - 987) / 987] x 100
Subtract the new number by the original number
198 - 987 = -789
-789 ÷ 987 = -0.7993920972644377
-0.7993920972644377 x 100 = -79.94%