29.44% is the change from 197 to 255
Calculation steps:
[( 255 - 197 ) ÷ 197] x 100 = 29.44%
Formula
Percentage change = [(255 - 197) / 197] x 100
Subtract the new number by the original number
255 - 197 = 58
58 ÷ 197 = 0.29441624365482233
0.29441624365482233 x 100 = 29.44%