-99.57% is the change from 927 to 4
Calculation steps:
[( 4 - 927 ) ÷ 927] x 100 = -99.57%
Formula
Percentage change = [(4 - 927) / 927] x 100
Subtract the new number by the original number
4 - 927 = -923
-923 ÷ 927 = -0.9956850053937433
-0.9956850053937433 x 100 = -99.57%