54.72% is the change from 254 to 393
Calculation steps:
[( 393 - 254 ) ÷ 254] x 100 = 54.72%
Formula
Percentage change = [(393 - 254) / 254] x 100
Subtract the new number by the original number
393 - 254 = 139
139 ÷ 254 = 0.547244094488189
0.547244094488189 x 100 = 54.72%