-32.18% is the change from 637 to 432
Calculation steps:
[( 432 - 637 ) ÷ 637] x 100 = -32.18%
Formula
Percentage change = [(432 - 637) / 637] x 100
Subtract the new number by the original number
432 - 637 = -205
-205 ÷ 637 = -0.3218210361067504
-0.3218210361067504 x 100 = -32.18%