-6% is the change from 683 to 642
Calculation steps:
[( 642 - 683 ) ÷ 683] x 100 = -6%
Formula
Percentage change = [(642 - 683) / 683] x 100
Subtract the new number by the original number
642 - 683 = -41
-41 ÷ 683 = -0.060029282576866766
-0.060029282576866766 x 100 = -6%