29.29% is the change from 420 to 543
Calculation steps:
[( 543 - 420 ) ÷ 420] x 100 = 29.29%
Formula
Percentage change = [(543 - 420) / 420] x 100
Subtract the new number by the original number
543 - 420 = 123
123 ÷ 420 = 0.29285714285714287
0.29285714285714287 x 100 = 29.29%