19.52% is the change from 456 to 545
Calculation steps:
[( 545 - 456 ) ÷ 456] x 100 = 19.52%
Formula
Percentage change = [(545 - 456) / 456] x 100
Subtract the new number by the original number
545 - 456 = 89
89 ÷ 456 = 0.19517543859649122
0.19517543859649122 x 100 = 19.52%