85.67% is the change from 328 to 609
Calculation steps:
[( 609 - 328 ) ÷ 328] x 100 = 85.67%
Formula
Percentage change = [(609 - 328) / 328] x 100
Subtract the new number by the original number
609 - 328 = 281
281 ÷ 328 = 0.8567073170731707
0.8567073170731707 x 100 = 85.67%