88.47% is the change from 451 to 850
Calculation steps:
[( 850 - 451 ) ÷ 451] x 100 = 88.47%
Formula
Percentage change = [(850 - 451) / 451] x 100
Subtract the new number by the original number
850 - 451 = 399
399 ÷ 451 = 0.88470066518847
0.88470066518847 x 100 = 88.47%