-32.71% is the change from 642 to 432
Calculation steps:
[( 432 - 642 ) ÷ 642] x 100 = -32.71%
Formula
Percentage change = [(432 - 642) / 642] x 100
Subtract the new number by the original number
432 - 642 = -210
-210 ÷ 642 = -0.32710280373831774
-0.32710280373831774 x 100 = -32.71%