-47.72% is the change from 811 to 424
Calculation steps:
[( 424 - 811 ) ÷ 811] x 100 = -47.72%
Formula
Percentage change = [(424 - 811) / 811] x 100
Subtract the new number by the original number
424 - 811 = -387
-387 ÷ 811 = -0.47718865598027127
-0.47718865598027127 x 100 = -47.72%