87.91% is the change from 306 to 575
Calculation steps:
[( 575 - 306 ) ÷ 306] x 100 = 87.91%
Formula
Percentage change = [(575 - 306) / 306] x 100
Subtract the new number by the original number
575 - 306 = 269
269 ÷ 306 = 0.8790849673202614
0.8790849673202614 x 100 = 87.91%