-5.45% is the change from 642 to 607
Calculation steps:
[( 607 - 642 ) ÷ 642] x 100 = -5.45%
Formula
Percentage change = [(607 - 642) / 642] x 100
Subtract the new number by the original number
607 - 642 = -35
-35 ÷ 642 = -0.05451713395638629
-0.05451713395638629 x 100 = -5.45%