80.5% is the change from 318 to 574
Calculation steps:
[( 574 - 318 ) ÷ 318] x 100 = 80.5%
Formula
Percentage change = [(574 - 318) / 318] x 100
Subtract the new number by the original number
574 - 318 = 256
256 ÷ 318 = 0.8050314465408805
0.8050314465408805 x 100 = 80.5%