86.36% is the change from 308 to 574
Calculation steps:
[( 574 - 308 ) ÷ 308] x 100 = 86.36%
Formula
Percentage change = [(574 - 308) / 308] x 100
Subtract the new number by the original number
574 - 308 = 266
266 ÷ 308 = 0.8636363636363636
0.8636363636363636 x 100 = 86.36%