-20.94% is the change from 721 to 570
Calculation steps:
[( 570 - 721 ) ÷ 721] x 100 = -20.94%
Formula
Percentage change = [(570 - 721) / 721] x 100
Subtract the new number by the original number
570 - 721 = -151
-151 ÷ 721 = -0.20943134535367544
-0.20943134535367544 x 100 = -20.94%