55.12% is the change from 254 to 394
Calculation steps:
[( 394 - 254 ) ÷ 254] x 100 = 55.12%
Formula
Percentage change = [(394 - 254) / 254] x 100
Subtract the new number by the original number
394 - 254 = 140
140 ÷ 254 = 0.5511811023622047
0.5511811023622047 x 100 = 55.12%