-32.24% is the change from 642 to 435
Calculation steps:
[( 435 - 642 ) ÷ 642] x 100 = -32.24%
Formula
Percentage change = [(435 - 642) / 642] x 100
Subtract the new number by the original number
435 - 642 = -207
-207 ÷ 642 = -0.32242990654205606
-0.32242990654205606 x 100 = -32.24%