-73.74% is the change from 975 to 256
Calculation steps:
[( 256 - 975 ) ÷ 975] x 100 = -73.74%
Formula
Percentage change = [(256 - 975) / 975] x 100
Subtract the new number by the original number
256 - 975 = -719
-719 ÷ 975 = -0.7374358974358974
-0.7374358974358974 x 100 = -73.74%