-85.55% is the change from 256 to 37
Calculation steps:
[( 37 - 256 ) ÷ 256] x 100 = -85.55%
Formula
Percentage change = [(37 - 256) / 256] x 100
Subtract the new number by the original number
37 - 256 = -219
-219 ÷ 256 = -0.85546875
-0.85546875 x 100 = -85.55%