-10.36% is the change from 637 to 571
Calculation steps:
[( 571 - 637 ) ÷ 637] x 100 = -10.36%
Formula
Percentage change = [(571 - 637) / 637] x 100
Subtract the new number by the original number
571 - 637 = -66
-66 ÷ 637 = -0.10361067503924647
-0.10361067503924647 x 100 = -10.36%