-11.7% is the change from 641 to 566
Calculation steps:
[( 566 - 641 ) ÷ 641] x 100 = -11.7%
Formula
Percentage change = [(566 - 641) / 641] x 100
Subtract the new number by the original number
566 - 641 = -75
-75 ÷ 641 = -0.11700468018720749
-0.11700468018720749 x 100 = -11.7%