-33.13% is the change from 643 to 430
Calculation steps:
[( 430 - 643 ) ÷ 643] x 100 = -33.13%
Formula
Percentage change = [(430 - 643) / 643] x 100
Subtract the new number by the original number
430 - 643 = -213
-213 ÷ 643 = -0.3312597200622084
-0.3312597200622084 x 100 = -33.13%