87.95% is the change from 307 to 577
Calculation steps:
[( 577 - 307 ) ÷ 307] x 100 = 87.95%
Formula
Percentage change = [(577 - 307) / 307] x 100
Subtract the new number by the original number
577 - 307 = 270
270 ÷ 307 = 0.8794788273615635
0.8794788273615635 x 100 = 87.95%