-51.2% is the change from 832 to 406
Calculation steps:
[( 406 - 832 ) ÷ 832] x 100 = -51.2%
Formula
Percentage change = [(406 - 832) / 832] x 100
Subtract the new number by the original number
406 - 832 = -426
-426 ÷ 832 = -0.5120192307692307
-0.5120192307692307 x 100 = -51.2%