-5.16% is the change from 678 to 643
Calculation steps:
[( 643 - 678 ) ÷ 678] x 100 = -5.16%
Formula
Percentage change = [(643 - 678) / 678] x 100
Subtract the new number by the original number
643 - 678 = -35
-35 ÷ 678 = -0.051622418879056046
-0.051622418879056046 x 100 = -5.16%