31.25% is the change from 464 to 609
Calculation steps:
[( 609 - 464 ) ÷ 464] x 100 = 31.25%
Formula
Percentage change = [(609 - 464) / 464] x 100
Subtract the new number by the original number
609 - 464 = 145
145 ÷ 464 = 0.3125
0.3125 x 100 = 31.25%