-32.03% is the change from 637 to 433
Calculation steps:
[( 433 - 637 ) ÷ 637] x 100 = -32.03%
Formula
Percentage change = [(433 - 637) / 637] x 100
Subtract the new number by the original number
433 - 637 = -204
-204 ÷ 637 = -0.3202511773940345
-0.3202511773940345 x 100 = -32.03%