-34.77% is the change from 256 to 167
Calculation steps:
[( 167 - 256 ) ÷ 256] x 100 = -34.77%
Formula
Percentage change = [(167 - 256) / 256] x 100
Subtract the new number by the original number
167 - 256 = -89
-89 ÷ 256 = -0.34765625
-0.34765625 x 100 = -34.77%