-64.06% is the change from 256 to 92
Calculation steps:
[( 92 - 256 ) ÷ 256] x 100 = -64.06%
Formula
Percentage change = [(92 - 256) / 256] x 100
Subtract the new number by the original number
92 - 256 = -164
-164 ÷ 256 = -0.640625
-0.640625 x 100 = -64.06%