50.18% is the change from 271 to 407
Calculation steps:
[( 407 - 271 ) ÷ 271] x 100 = 50.18%
Formula
Percentage change = [(407 - 271) / 271] x 100
Subtract the new number by the original number
407 - 271 = 136
136 ÷ 271 = 0.5018450184501845
0.5018450184501845 x 100 = 50.18%