88.69% is the change from 451 to 851
Calculation steps:
[( 851 - 451 ) ÷ 451] x 100 = 88.69%
Formula
Percentage change = [(851 - 451) / 451] x 100
Subtract the new number by the original number
851 - 451 = 400
400 ÷ 451 = 0.8869179600886918
0.8869179600886918 x 100 = 88.69%