-50.25% is the change from 806 to 401
Calculation steps:
[( 401 - 806 ) ÷ 806] x 100 = -50.25%
Formula
Percentage change = [(401 - 806) / 806] x 100
Subtract the new number by the original number
401 - 806 = -405
-405 ÷ 806 = -0.5024813895781638
-0.5024813895781638 x 100 = -50.25%