-33.02% is the change from 642 to 430
Calculation steps:
[( 430 - 642 ) ÷ 642] x 100 = -33.02%
Formula
Percentage change = [(430 - 642) / 642] x 100
Subtract the new number by the original number
430 - 642 = -212
-212 ÷ 642 = -0.3302180685358255
-0.3302180685358255 x 100 = -33.02%