-11.53% is the change from 642 to 568
Calculation steps:
[( 568 - 642 ) ÷ 642] x 100 = -11.53%
Formula
Percentage change = [(568 - 642) / 642] x 100
Subtract the new number by the original number
568 - 642 = -74
-74 ÷ 642 = -0.11526479750778816
-0.11526479750778816 x 100 = -11.53%