-71.11% is the change from 886 to 256
Calculation steps:
[( 256 - 886 ) ÷ 886] x 100 = -71.11%
Formula
Percentage change = [(256 - 886) / 886] x 100
Subtract the new number by the original number
256 - 886 = -630
-630 ÷ 886 = -0.7110609480812641
-0.7110609480812641 x 100 = -71.11%