18.3% is the change from 459 to 543
Calculation steps:
[( 543 - 459 ) ÷ 459] x 100 = 18.3%
Formula
Percentage change = [(543 - 459) / 459] x 100
Subtract the new number by the original number
543 - 459 = 84
84 ÷ 459 = 0.1830065359477124
0.1830065359477124 x 100 = 18.3%