91.21% is the change from 307 to 587
Calculation steps:
[( 587 - 307 ) ÷ 307] x 100 = 91.21%
Formula
Percentage change = [(587 - 307) / 307] x 100
Subtract the new number by the original number
587 - 307 = 280
280 ÷ 307 = 0.9120521172638436
0.9120521172638436 x 100 = 91.21%