-50.81% is the change from 431 to 212
Calculation steps:
[( 212 - 431 ) ÷ 431] x 100 = -50.81%
Formula
Percentage change = [(212 - 431) / 431] x 100
Subtract the new number by the original number
212 - 431 = -219
-219 ÷ 431 = -0.5081206496519721
-0.5081206496519721 x 100 = -50.81%