-79.22% is the change from 255 to 53
Calculation steps:
[( 53 - 255 ) ÷ 255] x 100 = -79.22%
Formula
Percentage change = [(53 - 255) / 255] x 100
Subtract the new number by the original number
53 - 255 = -202
-202 ÷ 255 = -0.792156862745098
-0.792156862745098 x 100 = -79.22%