-89.14% is the change from 451 to 49
Calculation steps:
[( 49 - 451 ) ÷ 451] x 100 = -89.14%
Formula
Percentage change = [(49 - 451) / 451] x 100
Subtract the new number by the original number
49 - 451 = -402
-402 ÷ 451 = -0.8913525498891353
-0.8913525498891353 x 100 = -89.14%