-87.54% is the change from 987 to 123
Calculation steps:
[( 123 - 987 ) ÷ 987] x 100 = -87.54%
Formula
Percentage change = [(123 - 987) / 987] x 100
Subtract the new number by the original number
123 - 987 = -864
-864 ÷ 987 = -0.8753799392097265
-0.8753799392097265 x 100 = -87.54%