90.02% is the change from 451 to 857
Calculation steps:
[( 857 - 451 ) ÷ 451] x 100 = 90.02%
Formula
Percentage change = [(857 - 451) / 451] x 100
Subtract the new number by the original number
857 - 451 = 406
406 ÷ 451 = 0.9002217294900222
0.9002217294900222 x 100 = 90.02%