-48.24% is the change from 255 to 132
Calculation steps:
[( 132 - 255 ) ÷ 255] x 100 = -48.24%
Formula
Percentage change = [(132 - 255) / 255] x 100
Subtract the new number by the original number
132 - 255 = -123
-123 ÷ 255 = -0.4823529411764706
-0.4823529411764706 x 100 = -48.24%