-9.37% is the change from 630 to 571
Calculation steps:
[( 571 - 630 ) ÷ 630] x 100 = -9.37%
Formula
Percentage change = [(571 - 630) / 630] x 100
Subtract the new number by the original number
571 - 630 = -59
-59 ÷ 630 = -0.09365079365079365
-0.09365079365079365 x 100 = -9.37%