-66.97% is the change from 772 to 255
Calculation steps:
[( 255 - 772 ) ÷ 772] x 100 = -66.97%
Formula
Percentage change = [(255 - 772) / 772] x 100
Subtract the new number by the original number
255 - 772 = -517
-517 ÷ 772 = -0.6696891191709845
-0.6696891191709845 x 100 = -66.97%