-50.31% is the change from 807 to 401
Calculation steps:
[( 401 - 807 ) ÷ 807] x 100 = -50.31%
Formula
Percentage change = [(401 - 807) / 807] x 100
Subtract the new number by the original number
401 - 807 = -406
-406 ÷ 807 = -0.5030978934324659
-0.5030978934324659 x 100 = -50.31%