-86.24% is the change from 930 to 128
Calculation steps:
[( 128 - 930 ) ÷ 930] x 100 = -86.24%
Formula
Percentage change = [(128 - 930) / 930] x 100
Subtract the new number by the original number
128 - 930 = -802
-802 ÷ 930 = -0.8623655913978494
-0.8623655913978494 x 100 = -86.24%