-71.65% is the change from 903 to 256
Calculation steps:
[( 256 - 903 ) ÷ 903] x 100 = -71.65%
Formula
Percentage change = [(256 - 903) / 903] x 100
Subtract the new number by the original number
256 - 903 = -647
-647 ÷ 903 = -0.716500553709856
-0.716500553709856 x 100 = -71.65%