-73.66% is the change from 968 to 255
Calculation steps:
[( 255 - 968 ) ÷ 968] x 100 = -73.66%
Formula
Percentage change = [(255 - 968) / 968] x 100
Subtract the new number by the original number
255 - 968 = -713
-713 ÷ 968 = -0.7365702479338843
-0.7365702479338843 x 100 = -73.66%