-31.38% is the change from 631 to 433
Calculation steps:
[( 433 - 631 ) ÷ 631] x 100 = -31.38%
Formula
Percentage change = [(433 - 631) / 631] x 100
Subtract the new number by the original number
433 - 631 = -198
-198 ÷ 631 = -0.31378763866877973
-0.31378763866877973 x 100 = -31.38%