-51.17% is the change from 811 to 396
Calculation steps:
[( 396 - 811 ) ÷ 811] x 100 = -51.17%
Formula
Percentage change = [(396 - 811) / 811] x 100
Subtract the new number by the original number
396 - 811 = -415
-415 ÷ 811 = -0.5117139334155364
-0.5117139334155364 x 100 = -51.17%