-11.66% is the change from 643 to 568
Calculation steps:
[( 568 - 643 ) ÷ 643] x 100 = -11.66%
Formula
Percentage change = [(568 - 643) / 643] x 100
Subtract the new number by the original number
568 - 643 = -75
-75 ÷ 643 = -0.1166407465007776
-0.1166407465007776 x 100 = -11.66%