77.27% is the change from 308 to 546
Calculation steps:
[( 546 - 308 ) ÷ 308] x 100 = 77.27%
Formula
Percentage change = [(546 - 308) / 308] x 100
Subtract the new number by the original number
546 - 308 = 238
238 ÷ 308 = 0.7727272727272727
0.7727272727272727 x 100 = 77.27%