-33.96% is the change from 857 to 566
Calculation steps:
[( 566 - 857 ) ÷ 857] x 100 = -33.96%
Formula
Percentage change = [(566 - 857) / 857] x 100
Subtract the new number by the original number
566 - 857 = -291
-291 ÷ 857 = -0.3395565927654609
-0.3395565927654609 x 100 = -33.96%