40% is the change from 435 to 609
Calculation steps:
[( 609 - 435 ) ÷ 435] x 100 = 40%
Formula
Percentage change = [(609 - 435) / 435] x 100
Subtract the new number by the original number
609 - 435 = 174
174 ÷ 435 = 0.4
0.4 x 100 = 40%
Example