-10.95% is the change from 639 to 569
Calculation steps:
[( 569 - 639 ) ÷ 639] x 100 = -10.95%
Formula
Percentage change = [(569 - 639) / 639] x 100
Subtract the new number by the original number
569 - 639 = -70
-70 ÷ 639 = -0.10954616588419405
-0.10954616588419405 x 100 = -10.95%