-31.9% is the change from 840 to 572
Calculation steps:
[( 572 - 840 ) ÷ 840] x 100 = -31.9%
Formula
Percentage change = [(572 - 840) / 840] x 100
Subtract the new number by the original number
572 - 840 = -268
-268 ÷ 840 = -0.319047619047619
-0.319047619047619 x 100 = -31.9%