77.02% is the change from 457 to 809
Calculation steps:
[( 809 - 457 ) ÷ 457] x 100 = 77.02%
Formula
Percentage change = [(809 - 457) / 457] x 100
Subtract the new number by the original number
809 - 457 = 352
352 ÷ 457 = 0.7702407002188184
0.7702407002188184 x 100 = 77.02%