-51.83% is the change from 438 to 211
Calculation steps:
[( 211 - 438 ) ÷ 438] x 100 = -51.83%
Formula
Percentage change = [(211 - 438) / 438] x 100
Subtract the new number by the original number
211 - 438 = -227
-227 ÷ 438 = -0.5182648401826484
-0.5182648401826484 x 100 = -51.83%