-30.21% is the change from 811 to 566
Calculation steps:
[( 566 - 811 ) ÷ 811] x 100 = -30.21%
Formula
Percentage change = [(566 - 811) / 811] x 100
Subtract the new number by the original number
566 - 811 = -245
-245 ÷ 811 = -0.30209617755856966
-0.30209617755856966 x 100 = -30.21%