78.82% is the change from 321 to 574
Calculation steps:
[( 574 - 321 ) ÷ 321] x 100 = 78.82%
Formula
Percentage change = [(574 - 321) / 321] x 100
Subtract the new number by the original number
574 - 321 = 253
253 ÷ 321 = 0.7881619937694704
0.7881619937694704 x 100 = 78.82%