-50.68% is the change from 813 to 401
Calculation steps:
[( 401 - 813 ) ÷ 813] x 100 = -50.68%
Formula
Percentage change = [(401 - 813) / 813] x 100
Subtract the new number by the original number
401 - 813 = -412
-412 ÷ 813 = -0.5067650676506765
-0.5067650676506765 x 100 = -50.68%