-21.57% is the change from 728 to 571
Calculation steps:
[( 571 - 728 ) ÷ 728] x 100 = -21.57%
Formula
Percentage change = [(571 - 728) / 728] x 100
Subtract the new number by the original number
571 - 728 = -157
-157 ÷ 728 = -0.21565934065934067
-0.21565934065934067 x 100 = -21.57%