-72.01% is the change from 911 to 255
Calculation steps:
[( 255 - 911 ) ÷ 911] x 100 = -72.01%
Formula
Percentage change = [(255 - 911) / 911] x 100
Subtract the new number by the original number
255 - 911 = -656
-656 ÷ 911 = -0.7200878155872668
-0.7200878155872668 x 100 = -72.01%