-87.03% is the change from 987 to 128
Calculation steps:
[( 128 - 987 ) ÷ 987] x 100 = -87.03%
Formula
Percentage change = [(128 - 987) / 987] x 100
Subtract the new number by the original number
128 - 987 = -859
-859 ÷ 987 = -0.8703140830800405
-0.8703140830800405 x 100 = -87.03%