-44.39% is the change from 811 to 451
Calculation steps:
[( 451 - 811 ) ÷ 811] x 100 = -44.39%
Formula
Percentage change = [(451 - 811) / 811] x 100
Subtract the new number by the original number
451 - 811 = -360
-360 ÷ 811 = -0.4438964241676942
-0.4438964241676942 x 100 = -44.39%