34.14% is the change from 454 to 609
Calculation steps:
[( 609 - 454 ) ÷ 454] x 100 = 34.14%
Formula
Percentage change = [(609 - 454) / 454] x 100
Subtract the new number by the original number
609 - 454 = 155
155 ÷ 454 = 0.34140969162995594
0.34140969162995594 x 100 = 34.14%