87.25% is the change from 306 to 573
Calculation steps:
[( 573 - 306 ) ÷ 306] x 100 = 87.25%
Formula
Percentage change = [(573 - 306) / 306] x 100
Subtract the new number by the original number
573 - 306 = 267
267 ÷ 306 = 0.8725490196078431
0.8725490196078431 x 100 = 87.25%