-12.89% is the change from 644 to 561
Calculation steps:
[( 561 - 644 ) ÷ 644] x 100 = -12.89%
Formula
Percentage change = [(561 - 644) / 644] x 100
Subtract the new number by the original number
561 - 644 = -83
-83 ÷ 644 = -0.12888198757763975
-0.12888198757763975 x 100 = -12.89%