-30.3% is the change from 812 to 566
Calculation steps:
[( 566 - 812 ) ÷ 812] x 100 = -30.3%
Formula
Percentage change = [(566 - 812) / 812] x 100
Subtract the new number by the original number
566 - 812 = -246
-246 ÷ 812 = -0.30295566502463056
-0.30295566502463056 x 100 = -30.3%