56.35% is the change from 323 to 505
Calculation steps:
[( 505 - 323 ) ÷ 323] x 100 = 56.35%
Formula
Percentage change = [(505 - 323) / 323] x 100
Subtract the new number by the original number
505 - 323 = 182
182 ÷ 323 = 0.5634674922600619
0.5634674922600619 x 100 = 56.35%