-33.18% is the change from 642 to 429
Calculation steps:
[( 429 - 642 ) ÷ 642] x 100 = -33.18%
Formula
Percentage change = [(429 - 642) / 642] x 100
Subtract the new number by the original number
429 - 642 = -213
-213 ÷ 642 = -0.3317757009345794
-0.3317757009345794 x 100 = -33.18%