-49.82% is the change from 811 to 407
Calculation steps:
[( 407 - 811 ) ÷ 811] x 100 = -49.82%
Formula
Percentage change = [(407 - 811) / 811] x 100
Subtract the new number by the original number
407 - 811 = -404
-404 ÷ 811 = -0.49815043156596794
-0.49815043156596794 x 100 = -49.82%