-43.65% is the change from 811 to 457
Calculation steps:
[( 457 - 811 ) ÷ 811] x 100 = -43.65%
Formula
Percentage change = [(457 - 811) / 811] x 100
Subtract the new number by the original number
457 - 811 = -354
-354 ÷ 811 = -0.436498150431566
-0.436498150431566 x 100 = -43.65%