-28.3% is the change from 643 to 461
Calculation steps:
[( 461 - 643 ) ÷ 643] x 100 = -28.3%
Formula
Percentage change = [(461 - 643) / 643] x 100
Subtract the new number by the original number
461 - 643 = -182
-182 ÷ 643 = -0.28304821150855364
-0.28304821150855364 x 100 = -28.3%