-87.12% is the change from 994 to 128
Calculation steps:
[( 128 - 994 ) ÷ 994] x 100 = -87.12%
Formula
Percentage change = [(128 - 994) / 994] x 100
Subtract the new number by the original number
128 - 994 = -866
-866 ÷ 994 = -0.8712273641851107
-0.8712273641851107 x 100 = -87.12%