-51.09% is the change from 826 to 404
Calculation steps:
[( 404 - 826 ) ÷ 826] x 100 = -51.09%
Formula
Percentage change = [(404 - 826) / 826] x 100
Subtract the new number by the original number
404 - 826 = -422
-422 ÷ 826 = -0.5108958837772397
-0.5108958837772397 x 100 = -51.09%