-12.64% is the change from 641 to 560
Calculation steps:
[( 560 - 641 ) ÷ 641] x 100 = -12.64%
Formula
Percentage change = [(560 - 641) / 641] x 100
Subtract the new number by the original number
560 - 641 = -81
-81 ÷ 641 = -0.12636505460218408
-0.12636505460218408 x 100 = -12.64%