49.89% is the change from 451 to 676
Calculation steps:
[( 676 - 451 ) ÷ 451] x 100 = 49.89%
Formula
Percentage change = [(676 - 451) / 451] x 100
Subtract the new number by the original number
676 - 451 = 225
225 ÷ 451 = 0.49889135254988914
0.49889135254988914 x 100 = 49.89%