75.57% is the change from 307 to 539
Calculation steps:
[( 539 - 307 ) ÷ 307] x 100 = 75.57%
Formula
Percentage change = [(539 - 307) / 307] x 100
Subtract the new number by the original number
539 - 307 = 232
232 ÷ 307 = 0.755700325732899
0.755700325732899 x 100 = 75.57%