-62.33% is the change from 677 to 255
Calculation steps:
[( 255 - 677 ) ÷ 677] x 100 = -62.33%
Formula
Percentage change = [(255 - 677) / 677] x 100
Subtract the new number by the original number
255 - 677 = -422
-422 ÷ 677 = -0.6233382570162481
-0.6233382570162481 x 100 = -62.33%