49.8% is the change from 255 to 382
Calculation steps:
[( 382 - 255 ) ÷ 255] x 100 = 49.8%
Formula
Percentage change = [(382 - 255) / 255] x 100
Subtract the new number by the original number
382 - 255 = 127
127 ÷ 255 = 0.4980392156862745
0.4980392156862745 x 100 = 49.8%