-44.14% is the change from 256 to 143
Calculation steps:
[( 143 - 256 ) ÷ 256] x 100 = -44.14%
Formula
Percentage change = [(143 - 256) / 256] x 100
Subtract the new number by the original number
143 - 256 = -113
-113 ÷ 256 = -0.44140625
-0.44140625 x 100 = -44.14%