-12.48% is the change from 641 to 561
Calculation steps:
[( 561 - 641 ) ÷ 641] x 100 = -12.48%
Formula
Percentage change = [(561 - 641) / 641] x 100
Subtract the new number by the original number
561 - 641 = -80
-80 ÷ 641 = -0.12480499219968799
-0.12480499219968799 x 100 = -12.48%