-51.74% is the change from 833 to 402
Calculation steps:
[( 402 - 833 ) ÷ 833] x 100 = -51.74%
Formula
Percentage change = [(402 - 833) / 833] x 100
Subtract the new number by the original number
402 - 833 = -431
-431 ÷ 833 = -0.517406962785114
-0.517406962785114 x 100 = -51.74%