83.9% is the change from 323 to 594
Calculation steps:
[( 594 - 323 ) ÷ 323] x 100 = 83.9%
Formula
Percentage change = [(594 - 323) / 323] x 100
Subtract the new number by the original number
594 - 323 = 271
271 ÷ 323 = 0.8390092879256966
0.8390092879256966 x 100 = 83.9%