77.4% is the change from 323 to 573
Calculation steps:
[( 573 - 323 ) ÷ 323] x 100 = 77.4%
Formula
Percentage change = [(573 - 323) / 323] x 100
Subtract the new number by the original number
573 - 323 = 250
250 ÷ 323 = 0.7739938080495357
0.7739938080495357 x 100 = 77.4%