-30.04% is the change from 809 to 566
Calculation steps:
[( 566 - 809 ) ÷ 809] x 100 = -30.04%
Formula
Percentage change = [(566 - 809) / 809] x 100
Subtract the new number by the original number
566 - 809 = -243
-243 ÷ 809 = -0.3003708281829419
-0.3003708281829419 x 100 = -30.04%