64.55% is the change from 409 to 673
Calculation steps:
[( 673 - 409 ) ÷ 409] x 100 = 64.55%
Formula
Percentage change = [(673 - 409) / 409] x 100
Subtract the new number by the original number
673 - 409 = 264
264 ÷ 409 = 0.6454767726161369
0.6454767726161369 x 100 = 64.55%