46.56% is the change from 451 to 661
Calculation steps:
[( 661 - 451 ) ÷ 451] x 100 = 46.56%
Formula
Percentage change = [(661 - 451) / 451] x 100
Subtract the new number by the original number
661 - 451 = 210
210 ÷ 451 = 0.4656319290465632
0.4656319290465632 x 100 = 46.56%