-5.6% is the change from 643 to 607
Calculation steps:
[( 607 - 643 ) ÷ 643] x 100 = -5.6%
Formula
Percentage change = [(607 - 643) / 643] x 100
Subtract the new number by the original number
607 - 643 = -36
-36 ÷ 643 = -0.05598755832037325
-0.05598755832037325 x 100 = -5.6%