30.69% is the change from 492 to 643
Calculation steps:
[( 643 - 492 ) ÷ 492] x 100 = 30.69%
Formula
Percentage change = [(643 - 492) / 492] x 100
Subtract the new number by the original number
643 - 492 = 151
151 ÷ 492 = 0.30691056910569103
0.30691056910569103 x 100 = 30.69%