-74.01% is the change from 981 to 255
Calculation steps:
[( 255 - 981 ) ÷ 981] x 100 = -74.01%
Formula
Percentage change = [(255 - 981) / 981] x 100
Subtract the new number by the original number
255 - 981 = -726
-726 ÷ 981 = -0.7400611620795107
-0.7400611620795107 x 100 = -74.01%