-50.37% is the change from 814 to 404
Calculation steps:
[( 404 - 814 ) ÷ 814] x 100 = -50.37%
Formula
Percentage change = [(404 - 814) / 814] x 100
Subtract the new number by the original number
404 - 814 = -410
-410 ÷ 814 = -0.5036855036855037
-0.5036855036855037 x 100 = -50.37%