-86.57% is the change from 923 to 124
Calculation steps:
[( 124 - 923 ) ÷ 923] x 100 = -86.57%
Formula
Percentage change = [(124 - 923) / 923] x 100
Subtract the new number by the original number
124 - 923 = -799
-799 ÷ 923 = -0.8656554712892741
-0.8656554712892741 x 100 = -86.57%