-58.27% is the change from 611 to 255
Calculation steps:
[( 255 - 611 ) ÷ 611] x 100 = -58.27%
Formula
Percentage change = [(255 - 611) / 611] x 100
Subtract the new number by the original number
255 - 611 = -356
-356 ÷ 611 = -0.5826513911620295
-0.5826513911620295 x 100 = -58.27%