20.18% is the change from 451 to 542
Calculation steps:
[( 542 - 451 ) ÷ 451] x 100 = 20.18%
Formula
Percentage change = [(542 - 451) / 451] x 100
Subtract the new number by the original number
542 - 451 = 91
91 ÷ 451 = 0.2017738359201774
0.2017738359201774 x 100 = 20.18%