-49.82% is the change from 813 to 408
Calculation steps:
[( 408 - 813 ) ÷ 813] x 100 = -49.82%
Formula
Percentage change = [(408 - 813) / 813] x 100
Subtract the new number by the original number
408 - 813 = -405
-405 ÷ 813 = -0.4981549815498155
-0.4981549815498155 x 100 = -49.82%