-41.96% is the change from 255 to 148
Calculation steps:
[( 148 - 255 ) ÷ 255] x 100 = -41.96%
Formula
Percentage change = [(148 - 255) / 255] x 100
Subtract the new number by the original number
148 - 255 = -107
-107 ÷ 255 = -0.4196078431372549
-0.4196078431372549 x 100 = -41.96%