-72.81% is the change from 938 to 255
Calculation steps:
[( 255 - 938 ) ÷ 938] x 100 = -72.81%
Formula
Percentage change = [(255 - 938) / 938] x 100
Subtract the new number by the original number
255 - 938 = -683
-683 ÷ 938 = -0.7281449893390192
-0.7281449893390192 x 100 = -72.81%