-26.17% is the change from 256 to 189
Calculation steps:
[( 189 - 256 ) ÷ 256] x 100 = -26.17%
Formula
Percentage change = [(189 - 256) / 256] x 100
Subtract the new number by the original number
189 - 256 = -67
-67 ÷ 256 = -0.26171875
-0.26171875 x 100 = -26.17%